... .4401, F316L/1.4404, F321/1.4541 and F316Ti/1.4571, etc., The company has complete advanced production equipment of flanges, 20 ... ’s Republic of China, self-managed import and export right, and foreign trade professionals. At present, the company has an annual production capacity of 3 ... /1.4401, F316L/1.4404, F321/1.4541 and F316Ti/1.4571, etc., the company produces standard flanges (JIS, ANSI, DIN, BS ...