Pressure level：150lbs, 300lbs, 600lbs, 900lbs, 1500lbs or PN6, PN10, PN16, PN25, PN40...
Material：Ductile Iron，Duples steel，Carbon Steel，Stainless Steel
Standrad: ANSI, DIN, JIS, ANFOR, UNI, VSM, AS, Etc.
