... 16k,20k,30k,150# to 2500#,PN6-PN40 professional manufacuture of flangesize:DN15-DN2000material:cs&sspressure:5k,10k,16k, ... ,F316,F316L,316Ti and etc We are a professional manufacture doing flange field for more than ten ... on the long-time experiences,we have a team of skilled worker and international expert sales. We can ... our factory and have a business disussion. professional manufacture of flange