certificate:ISO9001:2008 Trunnion (valve part) Trunnion (valve part) Specification: Class: 150LB-2500LB;DN: DN15-DN900;Certification: ISO9001-2008; Standard: ASTM, JIS, DIN, ANSI, BS ,etc.; Material: Carbon steel, S.S., Alloy Steel (A276-304, A105+ENP, A276-316, etc.); Forged or cast is available; Trunnion Valve Part