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Zhejiang Zhenglong Environmental Protection Tech Co., Ltd.

Main Products:
Flexible Pipe, Plastic Pipe, Drain Pipe, Extension, Spiral Tube, Plastic Corrugated Pipe, Flexible and Expandable Pipe, Aluminum Flexible Duct, Rubber Hose, Ventilation Hose
Country/Region:
Zhejiang, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Zhejiang Zhenglong Environmental Protection Tech Co., Ltd was founded in 1996, Our factory located in jinhua city, Zhejiang PRO. China, We have branch company in Hangzhou city with professional sales team. We have been in this line for more than 20 years. Specializing in the production of plastic flexible drain pipe, downspout extension pipe, aluminum duct, fittings. Products of high quality, durability, widely used in overseas landscape, garden etc.

Hainan Huatongxinda Trade Co., Ltd.

Main Products:
Construction Scaffolding, Ring Lock Scaffolding, Square Steel Pipe, Rectaangular Steel Pipe, Hot Dipped Galvanized Pipe, Steel Pipe, Anti-Corrosion Pipe, Thermal Insulation Pipe
Country/Region:
Hainan, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
HUATONG XINDA is an integrated company of industry and trade, specializes in supplying scaffolding for construction industry and pipeline products for the petroleum, natural gas, electric power, chemical, refining, refrigeration, heating and other industries. The main products are construction scaffolding, ring lock scaffolding, welded steel pipes, square pipes, rectangular steel pipes, anti corrosion steel pipes, etc., can also be customized according to the customer's special design and requirements.

Xuzhou Perfect Tools Co., Ltd.

5 yrs·5.0
·Trading Company
Main Products:
HSS Drill Bit; Saw Blade; Hole Saw; Screw Taps; End Mill
Country/Region:
Jiangsu, China
R&D Capacity:
OEM Service
Sample Service:
Sample Available
Company Profile:
Xuzhou Perfect Tools Co., Ltd is a professional Manufacturer of high quality of Different kinds of cutting tools, Including drill bit, screw tap, screw dies, end mills, reamers, saw blade, etc.

ZHANGJIAGANG QING CHEN YU MACHINERY CO., LTD.

Main Products:
Plastic Shredder, Single Shaft Shredder, Plastic Pipe Extrusion Line, HDPE Pipe Butt Fusion Machine, Butt Welding Machine, PVC Pipe Production Line, PPR Pipe Production Line, Plastic Pulverizer Machine, Face Mask Machine, HDPE Pipe Production Line
Country/Region:
Jiangsu, China
R&D Capacity:
OEM Service
Company Profile:
ZHANGJIAGANG QINGCHENYU MACHINERY Co., Ltd which is a professional plastic machinery supplier located in Zhangjiagang city, China. A beautiful and famous city for all kinds of plastic machinery.

Zhangjiagang Baorui Machinery Co., Ltd.

5.0
Main Products:
Pipe Cutting Machine, Pipe Bending Machine, Chamfering Machine, Saw Blade Sharpening Machine, Laser Cutting Machine, Tube Bending Machine, Tube Cutting Machine, CNC Bending Machine, Wire Bending Machine, Rolling Machine
Country/Region:
Jiangsu, China
Sample Service:
Sample Available
Company Profile:
Zhangjiagang Baorui Machinery Manufacture, design and manufacture all kinds of pipe bending machine, pipe cutting machine, pipe end forming machine, chamfering machine, saw blade sharpening machine, aluminum cutting machine, we have the newest technology, for example, 1500W laser cutting machine, MC-425CNC V belt drive cutting machine, automatic loading and unloading line, robot equipment for machine, can provide all kinds of metal processing machine solution depend on all kinds of customer requirement

Hebei Orient ADMA Tech Group Co., Ltd.

Main Products:
PVC Hose, Rubber Hose, Hydraulic Hose, Silicone Hose, Pneumatic Hose, Oil Field Hose/Dredging Hose, Hose Crimping Machine, Hose Couplings and Clamps, Hose Protection Sleeve, Packaging Film
Country/Region:
Hebei, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Hebei Orient ADMA Tech Group Co., Ltd. Established in 2 0 1 0, is a Chinese company.

Dalian Zhong Hai Tian Plastic Products Co., Ltd.

21 yrs·5.0
·Manufacturer/Factory & Trading Company
Main Products:
Plastic Profiles(Plastic Tube, Plastic Wear Strips, Plastic Cover Strips, PVC Fence, Price Tag Holder)
Country/Region:
Liaoning, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Established in 2006, Dalian Zhong Hai Tian Plastic Products Co., Ltd. Stands as a leading manufacturer specializing in the seamless integration of industrial and trade activities. Boasting over 18 years of unparalleled expertise in extruded plastic profiles, we are dedicated to customizing and producing an extensive range of plastic profile products in various materials and specifications, including but not limited to PVC, UPVC, PC, PP, PE, ABS, and UHMWPE.

Xiamen Qishine Industry Co., Ltd.

13 yrs
Main Products:
Fastener, Gasket, Flange
Country/Region:
Fujian, China
R&D Capacity:
OEM Service
Sample Service:
Sample Available
Company Profile:
We Xiamen Qishine Industry Co., Ltd. is dedicated to supplying extensive range of Pipe, Valve, Flange, Pipe Fitting, Fastener, Gasket and related spare parts for oil, gas, petroleum industry service. And we offer Solar Power Supply System, such as Photovoltaic Panel in New Energy Field. Qishine. En. Made-in-China. com is our homepage, you are welcome to login for more details.

Shanghai AMC International Trading Co., Ltd.

21 yrs
·Trading Company
Main Products:
Handware, Hinges, Hardware, Hand Tools, Tools, Hammer, Plier, Measuring Tape, Screwdriver, Screws
Country/Region:
Shanghai, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Established in 1999, Shanghai AMC Int'l Trading Co., Ltd. Are engaged in manufacturing and exporting wide range of hardware, hand tools and other related products, such as hinges, locks, bolts, drawer sliders, knobs, bibcocks, valves & fitting, wire ropes, as well as various tools like hammers, axes, pliers, wrenches, saws, screwdrivers, jack planes, measuring tools, cutting tools, clamps, vices, drills, plumbing tools, tool kits, power tools, hydraulic jacks, V-belts etc.

Zhangjiagang Sino-Tech Machinery Co., Ltd.

15 yrs·5.0
·Manufacturer/Factory & Trading Company
Main Products:
Extrusion Blow Molding Machine, PVC Pipe Bending Machine, Plastic Extrusion Machine, Plastic Pulverizer, Plastic Profile Extrusion Machine, Pet Bottle Blow Molding Machine, Plastic Sheet Production Line, Plastic Recyling Machine, Plastic Pelletizing Line, Injection Molding Machine
Country/Region:
Jiangsu, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Sino-tech Machinery Co., Ltd is a professional manufacturer of extrusion blow molding machine, injection molding machine and pet bottle blow molding machine, plastic recycling&plastic extrusion line and related auxiliary machines in China.

HEBEI RITAI ORIGINAL PIPE CO., LTD.

26 yrs·5.0
·Manufacturer/Factory & Trading Company
Main Products:
Pex Pipe, PE-Rt Pipe, Flexible Hose &Tubing, Pex-Al-Pex Pipe Fittings, PPSU Fittings, Brass Fittings, PPR Pipe, PE Pipe, PVC Pipe, Manifolds
Country/Region:
Hebei, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Hebei Ritai Original Pipe Co., Ltd. Was founded in 2001, with its pipe production base located in Hebei, China. Currently, it is one of the top three largest PE-Xa pipe manufacturers in China, owning 100 PEXa production lines and 5 PE-Xa oxygen barrier external coating lines. The annual production capacity of PE-Xa pipe is 40 million meters.

Suzhou Deedo Machinery Co., Ltd.

12 yrs
·Manufacturer/Factory
Main Products:
Paper Straw Making Machine, Straw Packing Machine, Slitting Machine, Extrusion, Recycling Machine
Country/Region:
Jiangsu, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Suzhou Deedo Machinery Co., Ltd as a professional paper straw machines and the plastic recycling washing and pelletizing machine manufacturer are more than 10 years, we have much experience on paper straw & tube, plastic recycling.

Shanghai Qianshan Piping Technology Co., Ltd.

22 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Pipe Spool Fabrication Production Line, Pipe Cutting Machine, Pipe Beveling Machine, Pipe Fitting up Equipment, Pipe Welding Machine, Automatic Welding Machine, Pipe Cutting & Beveling Machine, Pi
Country/Region:
Shanghai, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
We are Shanghai Qianshan Piping Technology Co., Ltd. (Q. S. P. T)

LORK GROUP CO., LTD

Main Products:
Nickel Alloy, Cobalt Alloy, Titanium Alloy, Stainless Steel, Precision Alloy, Medical Material, Rare Metal Alloy, Rare Earth Alloy, Super Alloy, Lork Aerospace Material
Country/Region:
Henan, China
R&D Capacity:
OEM/ODM Service
Company Profile:
Lork Group is a supply chain management group focused on meeting the specialized specialty steel needs of strategic industries such as aerospace, biomedical, energy equipment, and semiconductor chips, providing clients with integrated solutions for full-lifecycle supply chain management.

Guangdong Ctube Industry Co., Ltd.

Main Products:
PVC Conduit, PVC Conduit Fittings, Rigid Conduit, Flexible Conduit, LSZH Conduit, Junction Box, Adapatable Box, Electrical Flexible Hose, Solar Conduit, Electrical Conduit
Country/Region:
Guangdong, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
We are one of the most professional plastic conduit manufacturers and research and development companies in China. We specialize in the development and production for innovative plastic conduit and fitting products for the cable management and protection.

Zhenjiang Jingyu Pipeline Equipment Co., Ltd.

10 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Plastic Pipes, Plastic Pipe Fittings
Country/Region:
Jiangsu, China
R&D Capacity:
ODM Service
Sample Service:
Sample Available
Company Profile:
Zhenjiang Jingyu Pipeline Equipment Co., Ltd. is located in Yangzhong, Jiangsu Province, and is a manufacturing company specializing in the production of plastic pipeline equipment and accessories. The company has a modern production base of nearly 8, 000 square meters, equipped with a comprehensive office and an independent testing laboratory. It is outfitted with multiple professional plastic pipe extrusion lines, injection molding equipment for fittings, specialized machining equipment, and various types of molds, focusing on the production of high-density polyethylene PE100 pipes and fittings, heat-resistant polyethylene PE-RT pipes and fittings, homopolymer polypropylene PPH pipes and fittings, copolymer polypropylene PPR pipes and fittings, fiberglass reinforced polypropylene FRPP pipes and fittings, crystallization-enhanced polypropylene PP-RCT pipes and fittings, and polybutylene PB pipes and fittings. These products are widely used in shipbuilding, offshore engineering, new energy, chemical smelting, wastewater treatment, and environmental management industries, serving systems such as ship ballast piping systems, drainage systems, hot and cold water systems for living areas, deep-sea aquaculture net systems, industrial ventilation duct systems, and hot and cold water supply and drainage systems, maintaining long-term cooperative relationships with Fortune Global 500 companies such as China Shipbuilding Group, China National Offshore Oil Corporation, and China Minmetals Corporation. Currently, the company has passed ISO9001 quality management system certification, ISO14001 environmental management system certification, OHSAS18001 occupational health and safety management system certification, and SGS certification. It has also obtained certification from nine classification societies, including China (CCS), the United States (ABS), Russia (RS), the United Kingdom (LR), Japan (NK), South Korea (KR), France (BV), Italy (RINA), and Norway (DNV). The PE100, PE-RT, PP-H, PP-R, PP-RCT, and PB pipes and fittings have received drinking water sanitation permits, and the company holds two invention patents and over 30 utility model patents. Jingyu Pipeline's mission is to earn trust through quality and enhance value through branding. We continuously strive for excellence in quality to win the trust of our customers and provide greater value through the establishment of an outstanding brand.

Zhejiang Shuiyou Pipeline Valve Co., Ltd.

5.0
Main Products:
UPVC Pipe Fittings, UPVC Pipe, ABS Pipe Fittings, Pph Pipe Fittings, PPR Pipe Fittings, Transparent UPVC Pipe Fittings, ABS Pipe, UPVC Ball Valve
Country/Region:
Zhejiang, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Zhejiang Shuiyou Pipeline Valve Co., Ltd. is one of the renowned suppliers of professional engineering plastic pipeline systems in China.

BAOTN INTELLIGENT LUBRICATION TECHNOLOGY (DONGGUAN) CO.,LTD.

Main Products:
Automatic Thin Oil Lubrication Pump Systems, Electric Grease Lubrication Pump, Oil and Gas Lubrication System, Vertical Multistage Centrifugal Pump, Part of Centralized Lubricating System, Quantified Decompression Thin Oil Distributor, Single Pressurization Thin Oil Distributor, Progressive Grease Distributor, Manual Grease Pump, Coolant Lubrication Pump
Country/Region:
Guangdong, China
Company Profile:
BAOTN Intelligent Lubrication Technology (Dongguan) Co., Ltd. is a high-tech enterprise dedicated to intelligent lubrication systems, located in the beautiful and dynamic Dongguan Songshan Lake Science City, Dongguan, China.

Zhe Jiang Yue Ding Corrugated Tube Co., Ltd.

26 yrs·5.0
·Manufacturer/Factory & Trading Company
Main Products:
Exhaust Flexible Pipe, Metal Hose, Expansion Joint, Flexible Tube, Flexible Pipe, Auto Exhaust Flexible Pipe, Exhaust Manifold, Vacuum Bellow, Welding Machine, Welder
Country/Region:
Zhejiang, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Zhejiang Yueding Corrugated Tube Co., Ltd. (formerly Zhejiang Yueqing Metal Hose Factory), was established in 1992 with a registered capital of USD1, 250, 000. We are a manufacturer of all kinds of exhaust flexible pipes, metal hoses, and corrugated compensators. Presently, we have over 200 employees, including 30 skilled engineers and highly-trained technicians.

Hebei Anduan Technology Industry Co., Ltd.

Main Products:
PVC Tube, Water Supply Pipe, Service Pipe, Drain Pipe, HDPE Permeable Pipe, Power Communication Pipe, Drip Irrigation Tape, Water Drain Pipe, PVC Plastic Pipe, PVC Pipe
Country/Region:
Hebei, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Our company is a modern enterprise that integrates research and development, production, sales, and service. The company has fixed assets of 160 million yuan, a modern factory area of over 60000 square meters, and more than 50 first-class fully automated production lines; Having the production capacity of various pipeline products and professional technical personnel; Having strong R&D capabilities and leading production capacity in the industry.

Hebei Xiong'an East Boom Engineering Materials Trade Co., Ltd.

Main Products:
HDPE Pipe, PVC Pipe, PPR Pipe, Mpp Pipe, HDPE Fittings, PVC Fittings, Plastic Tubing, Plastic Pipe, Water Supply Pipe, Drain Pipe
Country/Region:
Hebei, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Hebei Xiong'an East Boom Engineering Materials Trade Co., Ltd. is the core international trade subsidiary of Hebei Xiong'an Anzheng Engineering Materials Technology Co., Ltd., with a registered capital of 60 million RMB. With 23 years of experience in the pipeline industry, we are committed to becoming a high-tech group integrating research and development, production, and sales. Leveraging the strategic advantages of the Xiong'an New Area, we have integrated the complete industrial chain from raw material procurement to finished product delivery, with products exported to international markets such as Southeast Asia, the Middle East, and South America.

Joho Steel Co., LTD

6 yrs
·Trading Company
Main Products:
Seamless Steel Pipe, Boiler Steel Tube, ERW Steel Pipe, Pipe Fittings
Country/Region:
Hunan, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
JOHO STEEL Co., Ltd, founded in 1988, is a steel group which has integrated steel production, processing and trading into one.  We specializes in manufacturing carbon seamless steel pipes, boiler tube/heat exchanger tube and pipes for special uses,  besides, it also provides anti-corrosion services and pipes fittings processing for major engineering construction projects. Our products are widely used in the field of oil, gas & fluid transmission, construction projects, chemistry, pharmacy, electricity,  agriculture and metalwork etc.

Zhejiang Reliance Trading Co Ltd

4 yrs
·Trading Company
Main Products:
Cipp Resin, Cipp Classfiber, End Seal Seal, Internal Pipe Joint Sael, Quick-Lock, Instant-Lock, Repair Packer, High Pressure Plugs, Mortar Sprayer Machine, Piep Deformation Treatment Jack
Country/Region:
Zhejiang, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Reliance Trenchless Technology (RTT) is a joint ownership formed by three specialized enterprises: Qingdao Xinya Environmental Technology Co., Ltd., Wenzhou Wantuo Pipeline Equipment Co., Ltd., and GNLC Construction Machinery Co., Ltd. This collaboration brings together the unique strengths of each partner, creating a synergistic platform that covers key segments of the trenchless technology industry. By integrating their respective expertise, RTT aims to provide comprehensive and high-quality solutions for global pipeline maintenance and rehabilitation needs.

Wenzhou Sinco Steel Co., Ltd.

15 yrs
·Trading Company
Main Products:
Stainless Steel Pipe, Pipe Fittings, Ss Plate/Sheet, Stainless Steel Seamless Pipe, Stainless Steel Tube, Ss Flange, Stailness Steel Valve, Welded Pipe, Stainless Steel Coil, Ba Tube
Country/Region:
Zhejiang, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
WENZHOU SINCO STEEL CO. Ltd (ZHEJIANG TSINGCO PIPING TECHNOLOGY Co., Ltd ). Is one of the leading manufacturer and exporter for the Stainless Steel Seamless Pipes & Tubes from Wenzhou, China. Based on our Stainless Steel seamless pipe factory, We supply the ONE-STOP service fittings, flanges, valves etc to our customers home and abroad.

Jiangsu Renzhong Metal Products Co., Ltd.

Main Products:
Stainless Steel Tube, Stainless Steel Sheet, Scaffolding, Stainless Steel Coil, Scaffolding Pipe, Stainless Steel Pipe, Stainless Steel Plate, Scaffolding Coupler, 304 Stainless Steel Sheet, 304 Stainless Steel Plate
Country/Region:
Jiangsu, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Jiangsu Renzhong Metal Products Co., Ltd. is a comprehensive enterprise integrating production, processing, sales, warehousing and distribution. Over the years, it has been deeply involved in the stainless steel material and building materials industry, accumulating profound industry experience and high-quality market resources. The company is located in a high-quality industrial cluster area, with complete regional industrial support, superior transportation location, and well-connected land and logistics routes, providing unique advantages for raw material procurement, product production and nationwide cargo distribution. The enterprise relies on a mature and complete supply chain system, large-scale modern production bases and experienced professional operation teams to form a stable, efficient and standardized business model, with comprehensive production and supply capabilities firmly ranking at the forefront of the industry. The company's main business covers a full range of stainless steel products such as stainless steel plates, stainless steel coils and stainless steel strips, and also mainly deals in various specifications of scaffolding and related components. The product range is complete and the specifications are diverse, which can fully meet the individualized and diversified purchasing needs of different customers. The products are widely used in core fields such as construction engineering, mechanical manufacturing, decoration and renovation, municipal infrastructure, industrial equipment, etc. With good adaptability and practicality, they are suitable for various large and medium-sized project construction and production scenarios.

Tianjin Hongxin International Trade Co., Ltd.

Main Products:
Black Steel Pipe, Galvanized Steel Pipe, Gi Coil PPGI
Country/Region:
Tianjin, China
Sample Service:
Sample Available
Company Profile:
Our company was founded in 2000, is a comprehensive steel manufacturer integrating production, processing and trade all in one. The company's premises are located in the place of industry strategic importance in Shengfang of Hebei Province. Enjoying the convenient traffic and occupying an advantageous location, the company covers an area of 30, 000 square meters, construction area of 7, 500 square meters, more than 200 employees. Our company now owns 15 ERW steel pipe production lines and 6 special precision steel pipe production lines., and can reach the annual production capacity of 1000, 000 tons.

GFI HVAC LIMITED

5.0
Main Products:
Spiral Duct, Foam Pre-Insulated Duct, Air Vent, Flexible Duct, Rubber Insulation, Dampers, Air Diffuser and Grille, Air Register, Air Louver
Country/Region:
Fujian, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Since 2011, GFIHVAC has been dedicated to the HVAC industry, beginning with galvanized duct (GI duct) and pre-insulated duct manufacturing. Over the past 13 years, we have steadily expanded our operations, establishing and investing in new production facilities to enhance our capabilities.

Hunan Hengan Weiye Metal Products Co., Ltd.

5 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Steel Pipe
Country/Region:
Hunan, China
R&D Capacity:
ODM Service
Sample Service:
Sample Available
Company Profile:
After 20 years of development, HengAn Weiye Steel Group has become a leading enterprise in the industry with is own brand and several patents. In year 2022, Hunan HengAn Weiye Metal Products Co, Ltd was established to pave the way for extended processing and international trade of metal products. The company has over 10000 tons of stock and processing bases in Guangzhou, Tianjin, Hubei and Shandong, Jiangsu and Zhejiang.

Liaocheng Xinruyi Trading Co., LTD.

5.0
Main Products:
Seamless Steel Pipe, Steel Plate, Hot Rolled Steel Round Bar, Hot Forged Shaft, Self Drilling Anchor, Steel Storage Shelf, Steel Blocks, Steel Rock Bolt, Aluminum Alloy, Stainless Steel
Country/Region:
Shandong, China
Sample Service:
Sample Available
Company Profile:
Shandong Liaocheng Xinruyi Steel Plant, built in year 2017 with registered capital of 30, 000, 000RMB, and we have been in the steel products industries for more than 15 years. The company is located in Liaocheng City, next to capital of Shandong Province, and it enjoy good transportation environment of 3 hours to nearest port and 1 hour reaching the airport.

Sichuan Liaofu Special Steel Co., Ltd.

22 yrs
·Trading Company
Main Products:
Titanium Bar, Steel Rigging
Country/Region:
Sichuan, China
Sample Service:
Sample Available
Company Profile:
Sichuan Liaofu Special Steel Company., Ltd was established in 2001, specialized in special steel production and inventory as the main business. Now our company covers an area 76250 square meters. The manufacturing workshop has excellent production equipment such as 30, 60 tons of VOD, VHD refining furnace, 12 ton vacuum consumable furnace, 12 ton vacuum induction furnace, 2000 ton/3500 ton quick forging machine, 1000 ton precision forging machine, 5 tons / 8 tons of electro-hydraulic A set of hammer units, two sets of 1/0.75/0.25 tons air hammer, two sets of 630-ton three-way hydraulic press units, two sets of 315-ton four-column hydraulic leveling units. Auxiliary equipment include gas generator, continuous heating furnace, car- bottom type annealing furnace and electric annealing furnace. Full hydraulic electric wheel peeling machine, electric band saw, gantry saw, etc. The testing equipment includes advanced instruments for chemical analysis, physical inspection and mechanical performance testing.