... 30k,150# to 2500#,PN6-PN40 professional manufacuture of flangesize:DN15-DN2000material:cs&sspressure:5k,10k,16k,20k ... ,30k,150# to 2500#,PN6-PN40professional manufacuture of flange1.Size:DN15 to DN2000,1/2" to ... been exporting the flanges to all over the world.Based on the long-time experiences,we have ... a team of skilled worker and international expert sales. We can ...