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Handan Zhengda Steel Pipe Group Co., Ltd. (for short: Zhengda steel pipe, abbreviation: ZDP)which was established in 2005. ZDP is honored as"National High-Tech Enterprise", "National Trustworthy Enterprise", "National Pilot Enterprise for Integration of Information Tech and Industrialization" "National Green Factory", "National Intellectual Property Advantage Enterprise", "National Top 500 Manufacturing Enterprise", " National Top 500 Private Enterprise", "China Top 500 Brand", "Beijing- Tianjin-Hebei Region Top 100 Enterprise", "Hebei Top 100 Enterprise", "Leading Enterprise of Hebei Industrial Cluster", " National Top 30 Benchmark Private Enterprise for Cultural Construction". Dealing with the production and sale of ERW steel pipe, galvanized steel pipe, SSAW steel pipe, GI and black square and rectangular steel pipe, steel -plastic composite pipe, ZDP has become a modern comprehensive enterprise that focuses on manufacturing and sales, integrating science, industry, and trade.

Shandong Qiaotai Pipe Industry Technology Co., Ltd. is a high-tech enterprise specializing in the production of PE water supply pipes, PE agricultural irrigation pipes, PE non excavation traction pipes, PE threading pipes, HDPE double wall corrugated pipes, MPP Cable protection pipes, HDPE plastic steel winding pipes and other series of products.

Founded in 2002, Linyi Rongxiang Steel Pipe Co., Ltd. is a professional steel pipe manufacturer located in Hedong Industrial Park, Linyi, China. With over 20 years of manufacturing experience, we specialize in R&D, production and deep processing of welded pipes, cold-rolled strip steel and hot-DIP galvanized steel pipes. As a Provincial Innovative SME and Green Factory with 26 technical patents, we own a complete industrial chain covering raw material processing, precision pipe welding, environmental galvanizing, customized deep processing and integrated logistics services. Our factory covers 200, 000 square meters with advanced intelligent production lines and professional testing laboratories, supporting an annual output of 50, 000 tons. We produce round pipes (15mm-219mm outer diameter) and full-spec square and rectangular tubes, with wall thickness tolerance strictly controlled within ±0.2mm for standard products and ±0.1mm for high-precision customized pipes. Our in-house galvanizing workshop provides adjustable anti-corrosion solutions, with standard zinc coating of 40μm to 85μm and thickened coating over 100μm for coastal, chemical and high-corrosion environments. Adopting eco-friendly passivation technology, our products meet domestic and international environmental standards for smooth export customs clearance. We offer one-stop deep processing including fixed-length cutting from 3m to 12m, bending, punching, polishing and anti-rust treatment, allowing direct installation without secondary processing. We maintain sufficient spot inventory for greenhouse, structural, guardrail, power support and storage rack pipes, with fast delivery: 3-5 days for stock orders, 7-15 days for customized orders and 15-25 days for bulk orders. Our product lineup covers Q235B/Q355B black welded pipes, cold galvanized pipes and high-performance hot-DIP galvanized pipes. Our galvanized pipes feature strong zinc adhesion and over 10 years of outdoor anti-corrosion lifespan, widely used in greenhouses, municipal facilities and industrial projects. We support SGS third-party inspection and provide complete qualification documents, complying with GB/T3091, ASTM and EN standards for global bidding and customs clearance. With strict three-level quality control and independent R&D capabilities, we ensure stable product quality and standardized green production. We support flexible cooperation with low 1-ton MOQ, free samples, tiered pricing, T/T and L/C payment terms, as well as EXW and FOB quotations. Adhering to "Quality First, Customer Supreme, Credit-Based", we provide efficient after-sales service and sincerely cooperate with global clients for win-win development.

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.

Shandong Flex Machinery Co., Ltd is a comprehensive enterprise integrating R&D, manufacturing, sales, and international trade. It owns two brands: Shandong Flex (FLKS) and Linyi Mingsheng Heavy Industry (MSD). Our main products include water well drilling rigs, hydraulic drilling rigs, core drilling rigs, drill pipes, drill bits, down-the-hole hammers, air compressors, and mud pumps. Our products are widely used in geological exploration, mining, water conservancy projects, construction engineering, and many other important fields, and are highly trusted by our customers.

DATANG STEEL PIPE Co., Ltd is a reputed manufacturer and wholesaler that export to global markets for 17 years.

Langfang Baiwei Drill Co., Ltd., is the predecessor is Langfang Baiwei Drill factory, was established in October 2003, in April 2006 purchased the land to build new plants in Hebei Yongqing Industry Area. Meanwhile register and set up a Langfang Baiwei Drill Co., Ltd. In December 2006 completed movement and put into production. The company has total area of 18, 000 square meters, production workshop area of 12, 000 square meters, integrated office space of 1, 000 square meters, total investment 18 million yuan.

Shandong Fenghong New Materials Technology Co., Ltd. is a modern steel enterprise specializing in the research, development, production, processing, and sales of metal materials. With years of experience in the industry, it has become a core supplier for numerous engineering construction and industrial manufacturing clients thanks to its high-standard production system, meticulous quality control processes, and customized service solutions.

Hebei Aoliande Chemical Equipment Co., Ltd. is professional manufacturer which to market & sell FRP/GRP Pipe & fittings, FRP/GRP tank & tower, FRP grating, FRP pultruded profiles, FRP SMC water tank, FRP polymer electrolytic cell, S/F, F/F double wall underground fuel tank, FRP rebar, FRP pipe filament winding machine & technology, FRP tank filament winding machine & technology, FRP molded grating machine & technology, FRP rebar machine & technology, FRP pultrusion machine, FRP polymer electroytic cell machine & technology, Mannheim Process Potassium Sulphate Making Equipment & technology, FRP cable tray, FRP septic tank, Fiber reinforced plastic rod/core, etc, our international sales branches-Hebei Aoliande Chemical Equipment Co., Ltd through the continuous development and introduction of professionality and technology, the company rely on advanced technology, exquisite craftsmanship, reliable quality and perfect service, passed ISO9001, ISO14001, OHSAS18001 and SGS management system certification, now we have 300+ staff, annual sales of glass fiber reinforced plastic series products achieved 20, 000 tons, products have been sold to all over the world, USA, Brazil, Japan, Germany, India, Malaysia, Iran, Egypt, Bangladesh, Mali, Mongolia, Philippines, Italy, Chile, etc, and won the support and trust from new & old customers.

Liaocheng Yiheng Machinery Co., Ltd. Was founded in 2015. We are a professional enterprise engaged in producing and exporting concrete hose and concrete pump spare parts. Yiheng is located in Zhangluji Town, Dongchangfu District, Liaocheng City, Shandong Province, China. Our manufacture covers an area of more than 20000m3 , has fixed assets of over 8 million yuan. And currently we have 86 employees, including 36 professional technicians with college education. Within years of development and growth, Yiheng has become a large joint venture integrating research, design, production, and sales.

Shanghai South Geely Industrial Co., Ltd. is located at Wanke QiBao International Intellectual Park in Shanghai, China with about 5KM away from SHA (Shanghai Hongqiao Airport), and 45KM away from PVG(Shanghai Pudong Airport).

Hejian Dingtong Drill Bit Manufacturing Co., Ltd. is located in Junzi Hall Development Zone, Hejian City, Cangzhou, Hebei Province, 166km away from the Economic and Technological Development Zones along China National Highway 106. It is adjacent to Baocang Expressway in the south, Daguang Expressway and Beijing-Hong Kong-Macao Expressway in the west, and Beijing-Shanghai Expressway in the east, enjoying a superior geographical location and convenient transportation.

Ningbo Minde Building Materials Co., Ltd., formerly known as Yuyao Mingda Pipe Industry Co., Ltd., is a manufacturer specializing in PPR water supply systems - for PIPES and FITTINGS.

  Shandong Hengde Plastic Co., Ltd. is a pipe manufacturing enterprise that integrates design, production, and sales. The company has more than 10 sets of large and medium-sized mechanical processing equipment for producing various types of pipes, with an annual production capacity of up to 3 million meters. Simultaneously possessing the necessary process equipment and testing instruments for physical and chemical testing, pressure testing, etc; The main products produced include HDPE water supply and drainage pipes, gas pipes, silicon core pipes, bundled pipes, ground source heat pump pipes, MPP power pipes, etc. The company relies on a rigorous quality management system to ensure quality throughout the entire process of product production, transportation, and service. Passed quality management system certification, environmental management system certification, occupational health and safety management system certification, Shandong Province's domestic hygiene license and product certification for drinking water hygiene and safety products, People's Republic of China's special equipment manufacturing license - natural gas pipeline (pressure pipeline components), transportation engineering product - HDPE silicon core pipe factory inspection certificate. The company has a professional technical research and development team. In recent years, it has been recognized as a national high-tech enterprise, a "specialized, refined, unique, and new" enterprise in Shandong Province, a technology-based small and medium-sized enterprise in Shandong Province, an innovative small and medium-sized enterprise in Shandong Province, and a "specialized, refined, unique, and new" enterprise in Liaocheng City. It has accumulated multiple utility model patents. The company continues to strengthen its investment in technology research and innovation, further promoting technological innovation and product upgrades, and enhancing the company's core competitiveness. The company upholds the corporate spirit of "unity, struggle, pragmatism, and innovation", promoting efficiency through management, survival through quality, development through reputation, building a brand through integrity, and increasing vitality through sales. Introduce market mechanisms into various aspects of enterprise sales, supply, production, etc., and establish an outward oriented development and operation mechanism that adapts to the market economy. By creating famous brands, producing high-quality products, providing high-quality services, and maintaining credibility, we aim to shape a positive social image. To build a product monument for Chinese pipes and always move forward, striving to create a national brand in the Chinese plastic pipe industry!

Shandong Donghong Pipe Industry Co., Ltd. ( Donghong Pipe Industry, stock code: 603856) is headquartered in the hometown of Confucius - Qufu, China, and is an engineering pipeline manufacturer, pipeline engineering service provider and general contractor of pipeline engineering for all kinds of high polymer plastic pipelines, modified plastic composite pipes, heavy Donghong is a manufacturer of engineering pipelines, pipeline engineering service provider and general contractor of pipeline engineering with various types of high polymer plastic pipes, modified plastic composite pipes, heavy anti-corrosion metal pipes, energy-saving thermal insulated pipelines, connecting fittings and the application of new materials as its main business. Relying on the national enterprise technology center, the company integrates upstream and downstream ecological resources, deepens the research on digitalization, informatization and intelligentization of pipeline engineering, integrates intelligent pipeline into human life, and devotes itself to becoming a global leading comprehensive solution provider of pipeline system.

SUZHOU JIEU FLUID TECHNOLOGYCO., Ltd. Is a manufacturing company specialized in aluminum pipe, pipe fitting and industrial aluminum profile, which integrated in R&D, production, sales and installation. The group locates at economic and technological development zone of Zhangjiagang, Jiangsu, with a floor space of 200 mu and total investment of 180 million yuan. With 5 aluminum alloy tube extrusion production lines, 3 deep processing production line for finished products, and 2 production lines for industrial aluminum profile, the annual production capacity can be 3, 000 tons of aluminum alloy pipe and 8, 000 tons of industrial aluminum profile. It has become the large-scale aluminum alloy manufacturer with first-class technical equipment as it has the state-of-the-art production and inspection equipment, including mold center, inspection center, R&D and other equipment imported from Germany, South Korea and Japan. The company engages in the innovation and deep processing of non-ferrous materials and has launched high intensity aluminum alloy pipe, stainless-steel pipe, copper-aluminum composite pipe, aluminum pipe with internal thread, high-frequency welding of aluminum alloy collector pipe and pipe fittings, satisfying the demands of customers across the world with more diversified and better products.

License project: Import and export of goods under state-owned trade management; Import and export of goods; Technology import and export (projects that require approval according to law can only be carried out after being approved by relevant departments, and specific business projects are subject to the approval results) General projects: Manufacturing of hydraulic power machinery and components; Manufacturing of pneumatic power machinery and components; General equipment manufacturing (excluding special equipment manufacturing); Manufacturing of mechanical and electrical equipment; Research and development of mechanical equipment; Installation services for general mechanical equipment; Sales of mechanical equipment; Sales of electrical and mechanical equipment; Sales of instruments and meters; Mold sales; Sales of mechanical parts and components; Sales of generators and generator sets; Sales of electrical instruments and meters; Hardware product manufacturing; Wholesale of hardware products; Sales of metal products; Marine engineering equipment manufacturing; Technical services, development, consultation, exchange, transfer, and promotion; Rubber product manufacturing; Sales of rubber products; Sales of marine engineering equipment; Sales of chemical products (excluding licensed chemical products); Manufacturing of specialized equipment for petroleum drilling and production; Sales of specialized equipment for oil drilling and production; Special equipment manufacturing (excluding licensed professional equipment manufacturing); Special equipment repair; Electrical equipment repair; Sales of electrical equipment; Manufacturing of automotive parts and accessories; Wholesale of automotive parts; Sales of specialized environmental protection equipment; Manufacturing of specialized equipment for environmental protection; Manufacturing of generators and generator sets; Sales of solar thermal power generation equipment; Manufacturing of specialized machinery for building material production; Mold manufacturing; Sales of electronic products; Manufacturing of metal forming machine tools; Sales of metal forming machine tools (except for projects that require approval in accordance with the law, business activities shall be carried out independently with the business license in accordance with the law)

Shandong Quanrun Plastic Machinery Co. Ltd is located in the beautiful environment of Laiwu High-tech Zone, convenient transportation, complete development and application promotion in drip irrigation pipe production equipment has been committed since its inception, always adhere to the science and technology as the guide, the development of enterprises focus on the development of technological innovation and new products. The company now has a group of high-quality technical team, R & D department has 5 senior engineers, 22senior technicians, responsible for enterprise technology innovation. Professional involved in electronics, machinery, polymer science, technology provides a powerful guarantee for the development and manufacture of drip irrigation equipment.

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.

Casing Screen Pipe Technology (Tianjin) Co., Ltd. is engaged in manufacturing, supplying and exporting an unparalleled range of HDPE pipes, PVC pipes, PPR pipes, CPVC pipes, UPVC pipes, PVC-M pipes, HDPE double wall corrugated pipes, Steel belt reinforced HDPE corrugated pipes, Glass Reinforced Plastic pipes, PE coated steel pipes, MDPE & LDPE pipes, and the corresponding pipe fittings.

Goldenman Petroleum Equipment Co., Ltd. is proudly situated in the picturesque oilfield city of Dongying, nestled in the vibrant Shandong Province of China. Over the course of 18 years in operation, Goldenman has not only solidified its presence in the industry but also established itself as a leading manufacturer and supplier of premium petroleum equipment. We boast our own state-of-the-art factories, where we specialize in crafting an extensive range of drilling strings, valves, Blowout Preventers (BOP), cementing tools, and various other accessories essential for oil drilling rigs. Each of our products is meticulously crafted to adhere to the stringent standards set by API (American Petroleum Institute) and ISO (International Organization for Standardization) certifications, ensuring unparalleled quality and reliability.

We are a professional company specializing in modern agricultural technology and greenhouse engineering. With decades of industry experience, we integrate greenhouse design, manufacturing, and on-site construction, offering customers around the world efficient, reliable, and sustainable agricultural solutions. Our mission is to help agricultural businesses adopt advanced technologies, improve production efficiency, and achieve long-term growth in an increasingly competitive global market.

    Over the past more than ten years, the company has completed a strategic upgrade from 'deepening domestic sales -- building technical foundation -- global layout' with its own factory as the cornerstone. In the first eight years, it focused on the domestic market and became a leading core supplier for high-speed rail and power grids, leveraging its technical advantages in polyurethane new materials and transformer components.

Our company offers variety of products which can meet your multifarious demands. We adhere to the management principles of "quality first, customer first and credit-based" since the establishment of the company and always do our best to satisfy potential needs of our customers. Our company is sincerely willing to cooperate with enterprises from all over the world in order to realize a win-win situation since the trend of economic globalization has developed with anirresistible force.

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.

Our company are specialied in producing PP-R pipes, pipe fittings, HD-PE water supplying pipes, heat-meating pipe fittings, plastic connecting pipe fittings and water separators.

  Hebei Zhenwang FRP Co., Ltd. ** is a modern composite materials manufacturing enterprise that integrates design, production, installation, and maintenance. Since its establishment, the company has been dedicated to the research, development, and manufacturing of Fiber Reinforced Plastic (FRP) products. Through years of technological accumulation and market development, it has grown into one of the most influential and sizable FRP suppliers in North China.

Hengshui Jiubo Composites Co., Ltd. is professional manufacturer of FRP Pipe, FRP storage tank, FRP molded products, FRP pultrused products and FRP production machines, through the continuous development and introduction of professionality and technology, the company rely on advanced technology, exquisite craftsmanship, reliable quality and perfect service, passed ISO9001, ISO14001, OHSAS18001 management system certification, now we have 600 staff, annual sales of glass fiber reinforced plastic series products achieved 20, 000 tons, products have been sold to all over the world, USA, Brazil, Japan, Germany, India, Malaysia, Iran, Egypt etc, and won the support and trust from new & old customers.

Mengyin Runlu Import And Export Trading Co., Ltd. is a modern enterprise focusing on research and development, production, sales and service. It covers an area of more than 100 mu, has more than 30 PVC production lines, and has more than 100 employees. It is located in Mengyin County, Linyi City, Shandong Province, which is the main producing place of drilling RIGS in China. Railway, road, air and other convenient transportation, enjoy superior transportation advantages.

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