... size:DN15-DN2000 material:cs&ss pressure:5k,10k,16k,20k,30k,150# to 2500#,PN6-PN40 professional manufacuture of flangesize:DN15 ... :F304,F304L,F316,F316L,316Ti and etc We are a professional manufacture doing flange field for more than ten years.We ... step.Welcome to our factory and have a business disussion. professional manufacture of flange