socket welded union200+ factories verified

Qingdao HQ Import & Export Co., Ltd, the export office of HQ Pipeline, which is a professional manufacturer & exporter of all kinds of pipe fittings, flanges and valves in China: Forged Steel Pipe Fittings, Flanges, Butt Weld Pipe Fittings, Nipples and Coupling, UL/FM Ductile Iron Grooved Pipe Fittings, Pipe hangers and Clamps, Gate Valve, Butterfly Valve, Check Valve, Strainers, Ball Valve...And casting and forging OEM/ODM service, which are widely used in the field of petroleum, natural gas, ship building, metallurgy, electric power, chemical industries, fire protection etc.

Guangzhou Kingmetal Steel Industry Co., Ltd., is an Industry Group Company. It is a professional company in designing, producing and selling steel pipe, pipefittings and prefabricated house. We have our own big factories with modern machine line to make high quality products, which is mainly to be exported to oversea markets.

Wenzhou Santhai Valve Pipe Fitting Co., Ltd, located in Wenzhou, is a reliable and professional factory since 2006 which mainly involve in producing of steel pipes, valves, pumps, fittings, flanges, and some other steel products. Our products have been well exported to Europe, America and Asia. Our company keys to research and develop new technology to guarantee quality. Therefore, we can fully satisfy your demands and have a large customer base. Santhai company, with its professional spirits and focus attitude, strictly abides by optimized programs from material selection, production, inspection to after sales service. Every process is under strict inspection. We are based on polices of "Winning Customers Trust by Quality" and "Meeting Customers' Demands by Constant Improvement" to offer superior products service. Santhai people, with our professional as well as our remarkable products quality and favorable service, sincerely hope to work together with the vast number of clients, create brilliant! Warmly welcome new and old customers to contact us to negotiate business, mutual benefit and mutual cooperation!

Passion and dedication, enterprising, integrity and win-win, perseverance and persistence.

WENZHOU LONGVA MACHINE Co., Ltd (Original Name: Wenzhou Longva Light industry Machinery Co., Ltd), (Longva Group., Co., Ltd) started in 2006 and founded in 2010. It located in wenzhou, Zhejiang, China. It's five minutes by car from air port. Is a collection of research and development, production, sales, export in one of the comprehensive enterprise. The company has a full set of production and testing equipment, a group of high-quality professional and technical personnel and engineers, has passed ISO9001-2015, CE, SGS, IAF, ECM, ANAB, CNS certification. Our products are widely used in biopharmaceutical, food, beer, beverage, water purification, cosmetics, semiconductor, chemical, oil and other fields.

MILEE Clean Valve Technology (Zhejiang) Co., Ltd. is a professional manufacturer in high-level of hygiene demanding flow lines. It specializes in manufacturing high-precision stainless steel sanitary pumps, valves and unions, pipe fittings and tank accessories. Products are widely used in food, pharmaceutical, beverage, wine, dairy, cosmetics, bio-tech industries.

At Welflow Valve, we deeply understand the challenges and pressures you face in keeping your operations running smoothly and efficiently. It's not just about purchasing stainless steel valves and fittings; It's about finding a reliable partner who understands your needs and is committed to supporting your success every step of the way. That's why we've tailored our approach to prioritize not just the quality of our products, but also the quality of our relationships with you, our valued customers.

Xingsheng Machinery Technology Co., Ltd. Was established in 1990. It is a leading manufacturer of stainless steel flanges, sanitary pipe fittings and valves with more than 30 years of experience in the industry. The company has an area of 20, 000 square meters and 200 employees, half of them are technicians who understand production and quality. We rely on the geographical advantages of Wenzhou City, which is close to Ningbo Port, Shanghai Port and Yiwu China-Europe Train Hub, and rely on the high-quality and efficient raw material of stainless steel and special steel have supplied by Tsingshan Holding Group. After more than 30 years of development, we have created efficient machining production capabilities and an experienced production team.

For the last couple of years we focus only on one thing: How to make your valves and fitting work better. We think, we design, we apply different kind of accessories to your equipment. We offer our design with competitive manufacturing process cost to support brands with attitudes and styles. Come talk to us. ZHEJIANG YUZHENG VALVE TECHNOLOGY Co., Ltd has been a manufacturer of Stainless Steel Ball Valves and Pipe Fittings since 1998. With the concept of "Customer First", we have achieved stable and fast development, we will keep on innovation and expand our business all over the world. It is about 5 minutes away from Yongqiang Airport, and half an hour from Wenzhou Train Station. Ningbo Port and Shanghai Port are very close to our factory.

Wenzhou Qili Fluid Equipment CO Ltd is an exciting forward thinking company, we specialise in manufacturing stainless steel sanitary Fittings that comply with the following standards 3A, ISO, JDF, DIN, SMS. Such like the sanitary butterfly valve, check valve, sanitary union, sanitary pipe fittings, sanitary ferrules and so on. With our research and development department we are able to custom produce products for our customers. Our Production team are able to manufacture quality products on time for delivery every time to the highest of standards. All products are checked by fastidious quality control people before they are delivered. We look forward to building excellent relationships with likeminded customers who require quality products and excellent service which we provide to all our customers.

Zhejiang Jiurong fluid equipment Technology Co., Ltd is a comprehensive enterprise with R&D, design, manufacturing and sales. The marketing network is distributed at home and abroad. It has imported advanced numerical control machine tools and spectrometers, material detectors, coarse excess detectors, ultrasonic flaw detectors, and other series of production and testing equipment to ensure the quality and accuracy of products. We can undertake: DIN, ANSI, JIS, BS, NF, GB, JB, SH, HG etc.

HENGSHUI RUNXI INTERNATIONAL TRADE CO, . Ltd. Is the subsidiary of JIAYAO Co., Ltd., located in Yuying Street, Guangchuan Town, Jing County, Hengshui City, Hebei Province, China. We are a technology-based enterprise which is specialized in the area of R&D, marketing of multiply rubber products and rubber hose production line.

C&N Industrial Group have two faclity( ITONG anHUd HONGCHENG), is a leading manufacturer of steel pipef itting, flange products in China With 30 years in pipeline fields both manufacturing and trading. We have been supplying high quality piping material to our customer all over the world. Since 2006, our experience in pipe fitting and flange win many clients approval include ARAMCO, SADRA, SWCC, PDO, OQ, ADAMA, DOWL, Sonatrach etc. Besides products production, We have strong technicians can make Customized design as per ASME VIII, ASME B31.3, ASME B31.4 etc

TIANYAN HOLDING Co., Ltd., located in Chengjiang industrial zone, Huangyan district, Taizhou city, Zhejiang province, covers an area of 80, 000 square meters. It is a big manufacturer, who be specialized in high-tech, high capability, and high reliability piping system. The annual output is around 30, 000 tons, and the types of products are more than 20, 000 PCS. The quality and safety are paid attention to seriously, so many important certificates and identifications was acquired, including the authentication certificate of quality management system - ISO9001, the authentication certificate of environmental management system - ISO14001, the authentication certificate of occupational health management system - OHSAS18001. All of the products had passed the detection by national building material test center and other relevant authoritative department. And the company has be honored as the "Zhejiang famous export brand", "Zhejiang famous brand", "Zhejiang trustworthy company AA level" and many other honorary titles. After more than twenty years of development and innovation, the scale of factory continues to growing, and professional teams in the fields of mold, material, and artwork have been established. Large quantities of leading production machines and testing equipments have been brought in at home and abroad. At present, the export quantity of the company ranks the second in China. Furthermore, the third phase workshops are building now.

TIANYAN HOLDING Co., Ltd., located in Chengjiang industrial zone, Huangyan district, Taizhou city, Zhejiang province, covers an area of 80, 000 square meters. It is a big manufacturer, who be specialized in high-tech, high capability, and high reliability piping system. The annual output is around 30, 000 tons, and the types of products are more than 20, 000 PCS. The quality and safety are paid attention to seriously, so many important certificates and identifications was acquired, including the authentication certificate of quality management system - ISO9001, the authentication certificate of environmental management system - ISO14001, the authentication certificate of occupational health management system - OHSAS18001. All of the products had passed the detection by national building material test center and other relevant authoritative department. And the company has be honored as the "Zhejiang famous export brand", "Zhejiang famous brand", "Zhejiang trustworthy company AA level" and many other honorary titles. After more than twenty years of development and innovation, the scale of factory continues to growing, and professional teams in the fields of mold, material, and artwork have been established. Large quantities of leading production machines and testing equipments have been brought in at home and abroad. At present, the export quantity of the company ranks the second in China. Furthermore, the third phase workshops are building now.

Quzhou ECO Imp. & Exp. Co., Ltd is a professional supplier of meters in China since year 2000.

Wenzhou Jianhao pipe fittings Co., Ltd. Specializes in the production of stainless steel threaded pipe fittings, non-standard accessories, stainless steel flange. With a complete and scientific quality management system, the product quality is more perfect. Products are widely used in: Water supply, petroleum, environmental protection, chemical industry, food, electricity, construction, sewage, metallurgy, supporting fire fighting system, etc. Pipe material: Stainless steel 201, 304, 316, etc., to undertake threaded pipe fittings and various non-standard accessories Wenzhou Jianhao pipe fittings Co., Ltd. is recognized by the industry for its integrity, strength and product quality. Welcome friends from all walks of life to visit, guide and business negotiation. Wenzhou Jianhao pipe fittings has 13 years of design and development experience in the industry, with our team spirit and unity of perseverance, as well as our excellent employees, we will meet the next more brilliant decade, ten years of sharpening a sword, we will continue to sharpen ourselves. Wenzhou Jianhao pipe fittings Co., Ltd. Specializes in the production of stainless steel threaded pipe fittings, non-standard accessories, stainless steel flange. With a complete and scientific quality management system, the product quality is more perfect. Products are widely used in: Water supply, petroleum, environmental protection, chemical industry, food, electricity, construction, sewage, metallurgy, supporting fire fighting system, etc. Pipe material: Stainless steel 201, 304, 316, etc., to undertake threaded pipe fittings and various non-standard accessories Wenzhou Jianhao pipe fittings Co., Ltd. is recognized by the industry for its integrity, strength and product quality. Welcome friends from all walks of life to visit, guide and business negotiation.

 Shandong Gtech New Material has factory 15000 square meter, 20 units of equipment with 100 staff. It is a big manufacturer, who be specialized in high-tech, high capability, and high reliability piping system. All of the products had passed the detection by national building material test center and other relevant authoritative department. We are proud to hold the Quality Management System  Certificate, a testament to our commitment to delivering the highest quality standards in our products and services. Gtech New Material can design and produce PVC, CPVC pipes and fittings. In the past Years, Shandong Gtech New Material has never forgotten his mission-To protect health and safety. And Shandong Gtech New Material use best materials to produce high quality pipe and fittings with automatic production line and high tech quality control machines. The most important, Shandong Gtech New Material can guarantee that all pipes and fittings manufactured by Gtech are qualified.

"Quality Products, Competitive Prices and Prompt Delivery" is our belief.

Cangzhou Bewin Hardware Products Co., Ltd is one of the leading companies dealing in exporting Ball Vales, Screwed Fittings, Butt-Welded Fittings, Forged Fitting, Flanges and Pipes etc.

SHANXI SOLID INDUSTRIAL Co., Ltd. is located in the heavy industry province of Shanxi, which is abundant in iron ore, coke, steel and other industrial raw materials. We are one professional manufacturer in China for the pipeline products. We supply a comprehensive range products such as Ductile iron pipes, Ductile iron pipe fittings, Dismantling joints, Flange adaptors, Couplings, Steel pipes, Steel pipe fittings, PVC / PE/ PPR pipes, PVC/ PE/ PPR pipe fittings, Valves, Manhole covers, flanges, Rubber O rings, Fasteners, Pumps, water meters and other castings and forgings according to various international standards. We can also make the castings and forgings according to customers' drawings or samples. Our products are widely used in pipeline system for drinkable water, sewage, oil, gas, chemical plants and so on, and they have been widely exported to Europe, Middle East, South East Asia, Africa, Middle and South America for years. Up to now, we have exported our products to more than one hundred countries, they are well accepted by the customers and have won good reputation both at home and aboard.

RST Valve Group Co., Ltd was founded in Wenzhou City with more than 10 years of experience in producing different kinds of industrial valves. It is a high-tech comprehensive valve enterprise with design, research and development, manufacturing, sales and service.

With years of professional experience in exporting steel products and construction materials, our company has established a solid reputation as a reliable supplier in the global market. Adhering to the philosophy of "Quality First, Integrity-Based, Customer-Oriented", we have won wide praise and trust from merchants at home and abroad through unremitting efforts. Our commitment to high-quality products, reasonable prices and thoughtful after-sales service has enabled us to maintain long-term stable cooperation with customers worldwide and expand our international influence.

Hebei Yisheng Pipeline Equipment Co., Ltd. is mainly engaged in the research and development, design, production and sales of high pressure alloy pipes, fittings, flanges and pipelines in the fields of electric power, petroleum, chemical, nuclear power, natural gas and so on. It is a professional supplier of high pressure and high caliber pipe fittings at home and abroad. The company has international standard production workshop, advanced production equipment and national testing center. Products cover high, medium and low pressure pipe fittings, flanges, piping and other pressure pipe parts and deep processing product series.

When it comes to our company's introduction, we take pride in our extensive range of products such as Steel pipe joints, hexagonal plug head, smooth joints, hexagonal outer tooth joints, water pipe joints, elbows, by, tee, nuts and other accessories. Products are designed and manufactured in accordance with international standards: API, ANSI, BS, DIN, JIS, exported to North America, South America, Western Europe, the Middle East and Southeast Asia markets

Qingdao Donrex Co., Ltd

JoNeng valves company was started in 2007. Located in the stainless steel industry zone, Wenzhou, China.

Ezo Stainless is the subsidiary of Jiayuan machinery which was established in 2007. The Ezo stainless steel is specially manufacturing stainless steel tank, filter, pump, manways for dairy, pharmaceutical, dairy, beverage, food industries.

Hebei Shengtian Pipe-Fitting Group Co., Ltd. Was established in 1989. We are located in MengcunCounty in Hebei Province, covering an area of 100, 000 square meters, with a workshop of 25, 000 square meters and registered capital of $7, 500, 000. Our company has a strong staff team. There are over 360 employees, including over 30 professionals and technicians.

Wenzhou Lianggang Pipe Fitting Valves Co., Ltd. Is a manufacturer specializing in threaded pipes fitting and valves. Especially in recent years invented technical screw tap equipment, to overcome the product skew angle of the world problems, the products we sale can achieve without skew Angle, appearance no broke, product no leakage. The user can use the appearance is beautiful and Quality is reliable high grade advanced series of products. As a famous-nationwide one, our companyobtains advanced equipments high-grade technicians, exports high-level products to America, Southeast Asia and Middle East Regions and enjoy a great reputation inside all over the world.