cold tubes6,000+ factories verified

Volsun was founded in 2006, as the pioneer of cold shrink tube manufacturer in China, we keep focusing on the R & D, production and sales in insulation, sealing & protection solutions for more than 18 years.

Shandong Xinshenhao Intelligent Equipment Co., Ltd with the total assets of 500 million, is one of the largest seamless steel pipe manufactures in Shandong Province Subsidiary export trading Company Shandong xinshenhao international Trade CO. Ltd. Our company is located in Taishan Road of Liaocheng Economic Development Zone.

Fujian Bluesky Pipe Fittings Manufacturing Co., Ltd. is a modern enterprise integrating scientific research, development, design and production, and has a complete scientific management system.

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.

In the magnificent landscape of the steel industry, Liaocheng Mingxing Pipe Manufacturing Co., Ltd. Has been like a rising star since its establishment in 2016. It has emerged prominently in the industry with a rapid momentum and gradually grown into a pioneering enterprise integrating modern production and trade. The company has always focused on the global market with keen insight, and advanced steadily in the fierce market competition relying on forward-looking strategic vision and solid business capabilities, constantly writing its own development chapter.  

Wuxi East-Ai Hydraulic Components Manufacturing Co., Ltd., established in 2006, is located in Wuxi, China, known for being a prominent manufacturing city. The company takes pride in its convenient sea shipment arrangements. With a service concept centered around "people-oriented, quality first, service first, " East-Ai focuses on absorbing advanced technologies from domestic and international markets. This allows them to continuously enhance their production processes and strive for the production of impeccable products.

Sanli Precision Steel Tube Processing Factory was established in October 2003 and is located in Huadu District, Guangzhou, Guangdong, China. With over 20 years of development, we have grown into a specialized manufacturer with more than 10, 000 m² of production area. Our management and core engineering team comes from the "Guanggang" technical system and carries forward rigorous industrial discipline and standardized manufacturing practices, helping us control quality consistently from raw-material evaluation to final inspection.

Chewit international has two manufacture. One is for precision stee pipe --- CW tube. Another is manufacture steel forgings.

Tianjin Ruitong Steel Co., Ltd. Was founded in 1987 and is located in Daqiuzhuang Down, Jinghai Country, Tianjin, with employees and the total assets of up to one hundred million RMB. We are a modern private iron and steel complex that integrates production, sale, and trade together. We specialize in spiral welded pipes, high frequency straight seam welded pipes, cold-strip steel, luminous hoops, and electrician round aluminum poles, altogether five big serial products. Our company has abundant technical force, advanced production equipment, and consummation examination system. Presently we have 1 electrician round aluminum pole production line and our annual production of 9.0mm-20.0mm aluminum poles is 35, 000 tons; We have four continually cold-strip steel production lines, necessary equipment, acid pickling lines, cutting machines, and hoop annealing furnaces, and our annual production of 30-400mm width and 0.5mm thickness cold-strip steel is 80, 000 tons; We have 2 high frequency welded pipe production lines and our annual production of 16-60.3mm diameter and 0.6-2.0mm thickness straight seam thin wall welded pipes is 30, 000 tons; We have 5 two-sided buries arc spiral welded pipe production lines and our yearly production of 219-2020mm diameter and 5-16mm wall thickness spiral welded pipes are 100, 000 tons; We have 2 Luminous hoop production lines and our yearly production of 400mm width luminous hoops is 40, 000 tons. Under the business policy of good faith and quality, Tianjin Ruitong Steel Co., Ltd. Attained ISO9001 International Quality Assurance System Certification and our steel sells well in North America, Africa, Southeast Asia, and Europe. Meanwhile, we have gained a good reputation among clients. Tianjin Ruitong Steel Co., Ltd. Makes efforts to make enterprise culture with Zeitgeist and Ruitong characteristics, develop the enterprise spirit with constantly strive to become stronger, never stop struggling, and never say failure, and carry forward the value idea of making the nation stronger with steel and constructing high-quality goods base to create the world brand.

Shandong Honglin Electric Technology Co., Ltd. Was established on August 2, 2023, with Sun Yanli as the legal representative. The registered capital is 10 million yuan and the unified social credit code is 91370305MACRJPMD1K. The registered address of the enterprise is located in the east factory building of No. 27 Wangjiazhuang Industrial Park, Linzi District, Zibo City, Shandong Province. The company belongs to the industry of technology promotion and application services, and its business scope includes: General projects: Research and development of distribution switch control equipment; Manufacturing of plastic products; Sales of plastic products; Rubber product manufacturing; Sales of rubber products; Wholesale of hardware products; Sales of sealing fillers; Sales of glass fiber reinforced plastic products; Manufacturing of mechanical and electrical equipment; Sales of mechanical and electrical equipment; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Production of labor protection equipment; Sales of labor protection equipment; Mold manufacturing; Mold sales; Mechanical parts and component processing; Sales of steel reinforcement products for construction; Sales of chemical products (excluding licensed chemical products); Import and export of goods; Technology import and export. (Except for projects that require approval according to law, business activities can be carried out independently based on the business license. ) Licensed project: Construction project construction. (For projects that require approval according to law, business activities can only be carried out after approval by relevant departments. The specific business projects shall be subject to the approval documents or licenses issued by the relevant departments. ). The current operating status of the enterprise is in operation.

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.

Company Profile

Hebei Rongbao import and export trade Co., Ltd is a specializing in the equipment manufacturing field. Our main products include square tubes, round tubes, rectangular tubes, high-density steel tubes and precision steel tubes etc. These products, with their outstanding quality, are widely used in various fields such as construction, mechanical manufacturing, automotive industry and energy, and are highly trusted and praised by customers. We has its own stainless steel research and development department, production department and selling department.

Our company is a comprehensive enterprise specializing in the R&D, production and export of stainless steel raw materials and finished products. With over a decade of deep cultivation in the industry, we have built a complete industrial chain covering raw material smelting, precision processing and global distribution. Our main products include 304/316/201 series stainless steel plates, pipes, bars and customized deep-processing products. Relying on stable quality, flexible customization schemes and efficient delivery capabilities, our products are exported to more than 80 countries and regions such as Europe, America, Southeast Asia and the Middle East, and are widely used in construction decoration, mechanical equipment, chemical equipment, kitchenware & sanitary ware, automobile manufacturing and other fields.

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Qingdao Ironsteel International Trading Co., Ltd. is a professional manufacturer/supplier of different kinds of steel coil/sheet and steel pipe products in north of China.

Tianjin Boer King Steel Co., Ltd. Locates in the Shuang Gang industrial zone of Jinnan district 36km away from tianjin port. 6km away from tianjin airport, 40km away from train station.

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.

HarshMet Material Solutions Ltd (HMS), the special material business of HarshMet Corporation, is a leading performance advanced materials manufacturer, integrator and solutions provider, specializing in innovative and cost-performance materials solutions for global customers across a wide range of markets, including communication, utility, electrical, electronics, automotive, appliances and mass transportation infrastructure markets.

Shanghai Changjin Metal Product Co., Ltd, as one of the subsidiaries of AMHG, the marketing products including: Pipe, plate, bar, coil and etc of stainless steel, aluminium alloy, alloy steel and copper.

Weifang Luzheng Industry&Trade Co., Ltd. is located in Qingzhou City, Shandong Province, P. R. China.

Professional manufacturer of Honed tube, chrome rod, founded in 2004, operation under modern management system and technologies, ISO9001 certificated, It covers an area of 40, 000 sq. Meters.

Founded in 2016, Dumai Tube is an integrated manufacturer and exporter specializing in welded tubes, precision tubular components, and metal processing. We operate through two plants in China. Our core products include automotive exhaust pipes, engine manifolds, silencer pipes, car seat skeletons, large-caliber water supply pipes, gym equipment pipes, customized shaped tubes, as well as expanded metal meshes, perforated meshes, and wire mesh components.

ZHANG JIA GANG SHENG DING YUAN PIPE-MAKING CO;

Wuxi Baiheng Metal Co., Ltd started in hydraulic cylinder tube and chrome rod industry as early as 2001 in Wuxi city. We mainly specialized in manufacturing of hydraulic cylinder, cold drawn tubes, honed/skived tubes, chromed hollow rod and chrome plated steel bar. Our main products include:

ZHEJIANG SAILING STEEL INDUSTRY Co., Ltd was founded in 2011 in Wenzhou. We are a manufacturer devoted to the production and sales of stainless steel pipes and tubes, including seamless & welded stainless steel pipes and tubes, sanitary pipes, heat exchange tube, special steel material pipes. The material we are dealing including 304/304L/321/321H/310S/347H/316L/316Ti/317L/2205/2507, and Nickle base Alloy. The standards to be implemented are ASTM A312, ASTM A213, ASTM A269, ASTM A511, ASTM A789, ASTM A790, JIS3463, JIS3459, DIN2462, DIN17458, DIN17456, EN10216-5.

Dongguan Zhonghe Electronics Co., Ltd. is a specialized and innovative technology-based enterprise that specializes in the development, production and sales of polymer modified protective materials and provides one-stop solutions. It was founded in 2010 and is headquartered in Qingxi Town, Dongguan City. In 2020, a branch factory was established in Jiangsu with a construction area of more than 15, 000 square meters.

Tianjin Youfa International Trade Co., Ltd. is the subsidiary of Tianjin Youfa Group. As one of the windows for international business, we mainly focus on exploring overseas markets as well as developing and offering service for major domestic clients. Tianjin Youfa Group is a comprehensive steel-based enterprise, the business includes steel-making, steel strip, straight seam welded pipe, galvanized pipe, rectangular pipe, spiral pipe, plastic inner-lined pipe, seamless pipe, covered electrode, so on and so forth. The annual integrate production capacity amounts to 7.5 million tons. Since 2006, we have been one of the leading corporations in Chinese Top-500. What is more, Youfa Group is the largest straight-seam welded pipe manufacturer in China. In 2008, "YouFa" Brand was regarded as the "Well-known Chinese Trademark" by Trademark Office State Administration for Industry &Commerce of the People's Republic of China. Meanwhile, we are the first-class supplier for CNPC, Sinopec and some big relevant companies. So as to adapt to the overall-developing strategy, at the beginning of 2010, YouFa Group and its subsidiaries founded SIANO(Beijing) Steel Co., Ltd, which is responsible for the import &export business, building business contact with some influential companies and providing the after-sale service for our customers.

Runlin is a leading manufacturer and supplier of silicone cold shrink products. Our factory has passed ISO9001: 2008 test and gotten the certificate of conformity of quality management system certification.

Shandong Meide Import and Export Co., Ltd., founded in 1997, is located in Liaocheng City, Shandong Province, the largest steel logistics center in North China. It focuses on the production and sales of copper, aluminum, titanium, special steel, mold steel, alloy steel, and general mechanical equipment for steel processing. The product range is mainly extended to five series of plates, strips, tubes, rods and profiles. It has passed the ISO9001: 2000 quality system certification, and its products have passed the SGS, ROSH, TUV and REACH certification. It has cold rolling, hot rolling and other production lines. Such as heat treatment chemical analysis, metal halide detection, physical detection, non-destructive detection and other detection equipment and detection technology, and imported physical and chemical detection equipment full-spectrum direct-reading spectrometer, which can quickly and accurately analyze various metal materials. It is produced according to American ASTM standards, Japanese JIS standards, German DIN standards, British BS standards and other standards. At the same time, we can customize and develop new products according to the actual application of customers, and provide products according to different cost and performance requirements. The company has cooperative relations with more than 20 well-known steel mills in China and is the sales and export agent of famous local steel mills in Shandong Province. With rich and professional marketing experience of steel products, our company has become a reliable bridge between overseas customers and domestic steel mills. We are committed to strict quality control and considerate customer service, adhere to quality first, fast delivery, and our experienced staff can communicate with you at any time to ensure full customer satisfaction. We also welcome OEM and ODM orders. You can discuss your purchase requirements for the current product with our customer service center, or provide customized help for your application. It has established modern large outdoor warehouse and indoor warehouse, with 20000 tons of goods in stock. Its customer base covers all provinces and cities in the country, and has more than 100 long-term stable cooperative customers. We sincerely welcome friends from all over the world to visit our company. We look forward to establishing business relations and personal friendship with you.