duct pipe3,000+ factories verified

Qingdao Simingrui Precise Technology Co., Ltd. is a modern packaging products enterprise integrating foam-product production, mold design and machinery manufacture. We have two production bases locate in Qingdao and Zouping in Shandong province, covering exceed 50, 000 square meters and is one of the largest professional manufacturing factories in China at present.

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.

QINGDAO GLOBAL OVERSEAS IMP&EXP Co., Ltd represent some of the most famous Chinese enterprises specialized in producing and exporting high-strength low relaxation pre-stressed steel wire and strand, which annual output is: PC Strand 65, 000 mtns, PC wire12, 000 mtns, and Metal Duct Pipe 500, 000 ms.  

JNFLEX (CHANGZHOU) Co., Ltd. (formerly known as Changzhou Jiangnan Prestressed Corrugated Pipe Factory), established in 1995 and located in Changzhou, Jiangsu province, is a high-tech enterprise dedicated to providing customers with flexible connection and protection products and solutions. We specialize in the design, development, production, and technical service of various corrugated ducts, flexible ducts and tubes, stainless bellows, and a variety of plastic corrugated hoses. Since 1995, JNFLEX has grown into a large-scale enterprise with over 120 employees, more than 20% of whom are R&D personnel, and has obtained ISO9001 and IATF16949 certifications. Our products serve a variety of industries, including construction and infrastructure, automotive and marine, high-speed trains, steel metallurgy, environmental protection, and the new energy industry. All Material Manufacturing Is Done By Trained And Experience Man Power With The Help Of High Tech Machineries. We have established long-term collaborations with Fortune 500 companies both domestically and internationally. Our sales network spans more than twenty provinces, municipalities, and autonomous regions across China, and we have exported to Europe, North America, Southeast Asia, Australia, South America, and Africa for many years.

Maiyoute: An Innovative Leader in Parking Heaters

Shandong Shengshida Pipeline was established in 2013 with a registered capital of 100, 000, 000 yuan. It is located in Huangshan Town Industrial Park, Luozhuang District, Linyi City, Shandong Province. It specializes in the production of PE water supply pipes, PE farmland irrigation pipes, MPP power pipes, HDPE double-wall corrugated pipes, HDPEsteel belt reinforced spiral corrugated pipes and other pipes and fittings. The company has a superior geographical location, with four major ports in the east, LanshanPort, Rizhao Port, Lianyungang, Qingdao Port, and maritime transportation. It has obviousadvantages and is suitable for export to various countries. The three expressways of Beiing. Shanghai, Ridong and Qinglan are criss-crossing, and the transportation is very convenient. The company has dozens of domestic leading production equipment and testing equipment.

Jiaxing Subo Pipe Industry Co., Ltd. is located in Haiyan Zhongqian Industrial Park with beautiful scenery and convenient transportation. It is a professional manufacturer integrating R&D and sales of flexible ventilation duct, including main products of aluminum foil duct, smoke lampblack machine aluminum foil duct, air-conditioning and refrigeration air duct, activated carbon air filters, central air-conditioning insulation duct, ventilation systems equipment and other accessories. After years of unremitting efforts, the company's technology in the field of flexible ventilation duct research and development has been quite mature. In the process of development and growth, the company has consistently adhered to the "integrity, pragmatism, innovation" business principles, and constantly improve the operating system, with "quality first, credit second" production purposes to improve product quality and customer experience. Our company has won unanimous praise from domestic and foreign customers. All staff of the company warmly welcome new and old customers from all walks of life to visit and cooperate with us to create a better future.

About Lanzhi Environmental Technology

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.

Hebei Yingnai Environmental Protection Technology Co., Ltd.

Qinghe County Dema Auto Parts Co., Ltd. is an enterprise specializing in the production of automobile radiator hoses and automobile sealing strips It is located at No. 71 Huangshan Road, Qinghe County, covering an area of 15, 000 square meters and a construction area of 9, 000 square meters. The company currently has more than 100 cadres and employees, including 20 engineering and technical personnel, forming a comprehensive large company integrating production, sales and scientific research. At present, the company has established a stable supporting cooperation relationship with more than a dozen OEMs and has become one of their trusted suppliers. The company has won the honorary titles of"honorinc contracts and keeping promises", "star enterprise" and "quality trustworthy for many years, reflecting its good reputation and excellent product quality in the industry. Company Profile The company is equipped with three domestic advanced hose productior lines, and uses high-quality EPDM materials from Mitsui of Japan and DuPont of the United States for the production of automotive hoses. The product types are as many as more than 800, and the annual production capacity reaches more than 5 million sets. In order to ensure the quality of the physical and chemical laboratories, products, the company has oult measurement rooms and testing rooms, and is equipped with professiona testing personnel to strictly control every production link.

Our company and Shandong Datang energy-saving Materials Co., Ltd. is an associated enterprise.

IKING Company is a professional supplier and exporter of heat insulation materials. We are located in Tianjin City, which is one of the largest seaport in north China and has offered a good external condition for developing our company.

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.

Paida Technology & Industry Jiangsu Co., Ltd. is a new technology enterprise specializing in the research & development, production, sales, and service of mining equipment, engineering construction materials, and general electromechanical equipment. Its main products include ventilators, mine/tunnel air duct fabric, asphalt waterproof membranes, EVA waterproof boards, ASA synthetic resin tiles, special-purpose machine tools, modular machine tools, general-purpose components, and other products.

Shijiazhuang ShengShichang Trading Co., Ltd. Was established on March 29, 2018, located in Chang 'an District, Shijiazhuang City, Hebei Province. The company is a foreign trade business company of China's strength pipe manufacturer Jinghua Plastic Industry, committed to providing domestic and foreign customers with healthy, environmentally friendly and reliable pipe products.

Our company has been engaged in import and export trade for"moret than 20 years. It is a comprehensive manufacturing company engaged in high-quality steel and has established closecooperative relations with major steel production enterprises at home and abroadWith sufficient supplyreasonable price and honest service, we are based on the Chineseand foreign markets, have good corporate reputation and win the trust of our customers. We have a united and cooperative marketing team for development. With high-qualityservice and flexible business mode, we uphold the business philosophy of "survival byquality and development by reputation", Based on the principle of "honest operation, mutual benefit and common development", we are willing to provide new and oldcustomers with better and more professional services to create a better tomorrow.

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.

Our History

Guangdong Zhongjia Energy saving Technology Co., Ltd. is a company that integrates production, development, and sales. We mainly produce rubber and its supporting insulation products. Our insulation products have the characteristics of ultra lightweight, thermal insulation, thermal insulation, sound insulation, fire prevention, high hydrophobicity, etc., and are widely used in the insulation and heat insulation fields of industries such as construction, mechanical and electrical installation, central air conditioning, medical purification, automotive sealing and sound insulation, and building sound insulation. They have good energy-saving effects, long service life, and convenient construction.

Shandong Guangdu Pipe Co., Ltd is professional manufacturer of plastic pipes and fittings with more than 15 years exporting experience. Our company has 30 production lines and covers an area of 20, 000 square meters. Our company's main products are: HDPE pipe and fittings for water supply, gas, drainage and irrigation. PVC pipe and fittings for water supply, irrigation and drainage, PPR cold and hot water pipe and fittings, MPP electrical protection pipe, HDPE double wall corrugated pipe, HDPE steel belt reinforced corrugated pipe, etc. There are nearly 3, 000 kinds of pipes and fittings and valve products of different varieties and specifications. Our products are exported to South Arica, Middle East, Southeast Asia, South Asia, Central Asia, Russia, South America, North Africa, Middle Africa and other counties and regions.

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.

Yantai Guocheng Metal Co., Ltd. Was established in 2017, specializing in the production of metal products and accessories. As a comprehensive metal processing and manufacturing enterprise, GUOCHENG enjoys solid experience and advanced production tools. Located in China's Shandong Province, GUOCHENG has chosen a strategic location that provides the necessary proximity for the development of its operations. It is located close to major highways, just a 2-hour drive from Qingdao. Our engineering department employs specialists in the design and production of metal structures. Our mechanical welding know-how and compliance with industry standards guarantee maximum quality control.

Guangdong Haowei New Material Technology Co., Ltd. is a leading high-tech enterprise specializing in the research, development, production, and sales of advanced plastic materials and solutions. Our product portfolio includes PP sheets, PP pipes, thermoplastic sheets, innovative new plastic materials, and a wide range of eco-friendly equipment. Founded 17 years ago, the company has accumulated rich industry experience and built a solid reputation for professionalism and reliability. We are located at Building A2-2, Putang Development Zone, Shuanghe Town, Heshan City, Guangdong Province, China (Postal Code: 529728). Our modern factory covers 10, 000 square meters with an annual output capacity of 15, 000 tons. By introducing advanced production lines and adopting rigorous quality management systems, Haowei ensures that every product meets both domestic and international standards. Our PP sheets and thermoplastic products are highly valued for their strength, durability, corrosion resistance, cold resistance, electrical insulation, smooth surface, and bright appearance. These performance advantages make them widely applicable across industries such as: • Environmental Protection: Wastewater treatment equipment, exhaust gas purification systems, chemical-resistant tanks, and pipelines. • Agriculture & Animal Husbandry: Greenhouse facilities, aquaculture systems, feeding troughs, and protective barriers. • Industrial & Mechanical Engineering: Machine components, lining boards, conveyor systems, and protective panels. • Laboratories & Cleanrooms: Wall cladding, furniture, fume hoods, and work surfaces. • Electronics & New Energy: Insulation materials, lithium battery components, and precision plastic parts.  Over the years, Haowei has earned the trust of high-end clients at home and abroad, thanks to our consistent focus on quality and service. To better serve global markets, the company has obtained ISO9001 Quality Management System certification and adheres to international environmental protection standards. With advanced testing equipment, strict inspection processes, and a commitment to continuous improvement, our products are exported to multiple countries and regions worldwide. Beyond our products, Haowei upholds the values of innovation, quality, sustainability, and customer-first service. We continuously invest in R&D to develop new materials that meet the evolving demands of modern industries, while maintaining an environmentally responsible approach. Our technical team also provides customized solutions tailored to the specific requirements of different applications. With 17 years of expertise, a spirit of innovation, and strong partnerships with high-end clients, Guangdong Haowei New Material Technology Co., Ltd. is committed to becoming not only a leading supplier in China but also a trusted partner in the global plastics and new materials industry.  

Different kinds of products are available in our company. We're pleased to get your Inquiry and we will reply you as soon as possible. We stick to the principle of "quality first, service first, continuous improvement and innovation to meet the customers" for the management and "zero defect, zero complaints" as the quality objective.

Suzhou Rainbow Environmental Equipment Co., Ltd., established in 1993, is a professional factory of chimneys. It is located in the new and high-tech development zone, as the pioneer for chimney in China. Suzhou Rainbow specializes in high temperature steel gas pipeline design and manufacture. After 30 years practice in research and development, production and sale of prefabricated stainless steel chimneys, Rainbow has become the leading manufacturer in this field.

Qinghe County Zhirui Plastic and Rubber Technology Co., Ltd was founded in 1992, which is a manufacturer specialized in producing auto plastic and rubber parts for more than 20 years. It is located in Qinghe, Hebei Province-the Auto & Motorcycle Parts Production Base in Northern China. We have more than 20 production equipments, including 2 large-scale injection molding machines, 8 medium-sized injection molding machines and 10 small-sized injection molding machines. We have a plant area of 7600 square meters and a total of more than 50 employees, including 10 technicians.

  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.

XICHENG EP Ltd is located in Guangming District, Shenzhen. It is an environmental protection equipment manufacturer focusing on the environmental protection industry for many years and specializing in the production and sales of environmental protection equipment and various accessories. We are committed to providing quality products and services to our customers in scientific management mode.

Shangyu Plastic and Hardware Products Co. Limited is located in Dongguan City, which is famous for manufacturing in China. We are a medium-scale PVC plastic extrusion products' manufacturer. Our key products are PVC pipes and PVC profiles and PVC shutters. We are able to develop molds for customized products based on drawings or samples provided by customers. Our company has independent design department, engineer department and QC department. Our company uses dual-screw extrusion machines that can directly extrude with powder, cut down the granulation process. These help us have advantage on controlling the cost and make the products fully plastified. We focus on developing and improving products to meet customers' requirements like aging resistance, UV resistance, impact resistance, anti-static, corrosive resistance, anti-flaming, anti-mycete or RoHS. Our key personnels have more than twenty years' experience in plastic extrusion industry, that enable us to provide turn-key solutions to our customers.