... 150# to 2500#,PN6-PN40 professional manufacuture of flangesize:DN15-DN2000material:cs&sspressure:5k,10k, ... ,30k,150# to 2500#,PN6-PN40professional manufacuture of flange1.Size:DN15 to DN2000,1/2" ... weld,blind flange5.Process:free forging, plate cutting, heat treat, machining6.Surfact treated:Anti-rust Oil, Paint, ... long-time experiences,we have a team of skilled worker and international expert sales. We ...