Enterprise main products Stainless Steel Flanges，Duplex Steel Flanges ，Super Duplex Steel Flange，Pipe Fitting, Elbow Pipe Fitting，Tee Pipe Fitting ,Cap Pipe Fitting ，SO (with flat welding neck flange)，WN (with butt welding neck flange)，IF (flange)， SW (socket welding flange)， BL (flange cover) all products of the companyStrictly follow API，GB， HGJ， ANST， ANSI， JIS，DIN，SHJ， ISO，GOST.

Zhejiang Hangong Flange Technology Co., Ltd. is a company that specializes in the research, development, manufacturing, and sale of high-quality flange and valve products made from stainless steel, carbon steel, and alloy. Our products strictly follow API, GB, HGJ, ANST, ANSI, JIS, DIN, SHJ, ISO, and GOST standards to ensure their quality and reliability.

We have a wealth of experience in working with austenitic stainless steel materials, 304，304 L，304 H，316316 L， 316 ti，316 H，321 H，347 / H，310 s， 317 L， 904 L， S31254/254 smo.

Dual-phase steel: S31803/F51，S32205/F60.
Super dual phase steel: S32760，S32750 / SAF2507 / F55/F53 .

Nickel alloy:N06625/625， N084400/400， N08825/825， N10276 / C276， 800/800 h, 600/600 h.

Our products are well-received in international markets, such as Holland, Indonesia, Finland, Korea, Japan, Ukraine, Singapore, Russia, Spain, Vietnam, Malaysia, and the Middle East, and we have achieved high customer satisfaction and market share. Regenerate response