Supply & Demand

We provide flanges complying with ASME, JIS, DIN and EN standards with diverse material options and solid workmanship. Full official certifications and inspection documents are available. With sufficient production capacity and on-time delivery, we have rich experience in piping fittings. We sincerely offer cost-effective flanges and professional services for customers all over the world.

We are professional manufacturer of pipe elbows with complete sizes and materials for petroleum, chemical, municipal and other projects. Featuring mature craftsmanship and precise dimensions, our products conform to international standards. All kinds of official certificates and inspection documents are provided. Supported by strong production capacity, we deliver steady supply for global clients and look forward to win-win cooperation.

Cangzhou Huishang Pipe Fitting Manufacturing Co., Ltd. supplies a full range of carbon steel and stainless steel pipes in all standard dimensions. Our products are manufactured in accordance with international standards including ASME, JIS, DIN and EN. We hold complete ISO, CE, API certificates and Material Test Certificates (MTC). Our products are sold at home and abroad, earning worldwide recognition for reliable quality and professional service.

Socket and screwed fittings：90°Elbow、45°Elbow、Tee、Reducing Tee、Coupling、Half Coupling、 Weldolet、Swage Nipple、Branch Nipple、Sockolet、Union DN15-100,2000LB-9000LB

ELBOW,TEE,REDUCERS,CAP,STUB ENDS,FLANGES,FORGED FITTINGS. Seamless: size 1/2′up to 24′, norminal wall thickness SCH5S up to SCH160 Welded: size 1/2′up to 72′, norminal wall thickness SCH5S up to SCH160

Seamless: size 1/2′up to 24′, norminal wall thickness SCH5S up to SCH160 Welded: size 12′up to 48′, norminal wall thickness SCH5S up to XS 304、304L、316、316L、317、317L、321、321H、347、347H、904L、310S、S31803、S32205.

ZTZG's Round Pipe Making Machine Without Changing Rollers: For producing ordinary carbon steel pipes, the roughing and finishing rollers before welding are shared. The sizing section uses a quick-change worktable and hydraulic quick-release device, allowing for rapid changes in sizing dimensions. When changing to different round pipe specifications, there's no need to disassemble and change rollers. For producing stainless steel pipes or low-carbon steel pipes using submerged arc welding, due to the slower welding speed, the entire production line can operate without changing rollers. This means that rollers are shared across the entire production line for different pipe specifications, and online electric adjustment is possible. Highly suitable for manufacturers producing multiple specifications in small batches of round pipes!

ZTZG's new direct-forming, roller-share tube-making machine is suitable for producing medium to large-sized square and rectangular tubes ranging from 200 to 500 square meters. It is a fully automated welded pipe production line that requires no roller changes. It can produce square and rectangular tubes of different specifications, with the rollers driven by a motor allowing for online adjustment and modification of production specifications. This significantly reduces rollere costs and improves production efficiency. The mechanized adjustment precision is higher, resulting in more regular tube shapes. Manufacturers of large-diameter square and rectangular tubes for building structures, industrial machinery, and transportation should definitely learn about ZTZG's automated, mold-free square tube equipment!

This ZTZG's jointly developed, designed, and manufactured "Round-to-Square Tube Production Line Without Roller Change" can produce round tubes, square tubes, and rectangular tubes without requiring roller changes. When producing round tubes of different specifications, the rough forming and fine forming rollers before welding are shared. When producing square and rectangular tubes within a certain range, no roller changes are needed in the forming section before welding;The sizing section adopts a misalignment adjustment method, allowing online adjustments to produce different specifications of square and rectangular tubes. This significantly reduces roller costs, improves production efficiency, and greatly enhances economic benefits for tube manufacturers!

The roll arrangement of the straightening machine is a multi-roll configuration, specifically a vertically mounted, fully driven inclined-roll straightener. As the steel pipe passes through the machine, its deformation exceeds the material's elastic limit, achieving ideal straightening results, including correction of pipe curvature and ovality. The straightening roll angle is adjustable within a range of 27° to 33°, allowing adjustment of the roll inclination angle to accommodate various pipe diameters and achieve excellent straightening performance.

The main body of the valve is made of PPR material, and both ends have heat-melt socket connections that are compatible with PPR water pipes; the internal valve core and valve stem adopt a brass sealing structure, with a handwheel switch on the top, and are formed by one-piece injection molding. There are standard specifications such as 20/25/32 diameters.

The entire product is made through a single injection molding process of food-grade PPR. There are two heat-melt socket connections of the same specification, forming a 90-degree right angle, without metal threads. There is also a 45-degree elbow of the same series.