Jinan HeChuang Mechanical Manufacturing Co., Ltd.
GOST 12821-80 PN6-PN40
Our flanges are completely finished according to the standard. Gost 12821-80 Pn6-Pn40 is neck flange with pressure PN6-PN40, and we produce ANSI, JIS, EN, DIN flanges. We grant our buyers with our strict quality control system and good serivce. In addition, we also do the United States, Japan, Britain, Germany, the series of products. won a lot of customer recognition, over the same period the company won three national patents.