API / ANSI ???????? Valve

01

150LBS ?????? ????? WCB ?????? ???????? ???????

01

A216 WCB 600LBS Swing Check Valve

01

?????? ???????? 900LBS BW Swing ???????? Valve

01

A216 WCB 2500LBS ?????? ???????? ???????? ???????

01

Butt Welded swing ???????? ??????? ??? ?????

01

Wafer ????? ???????? Valve

01

wafer ??? ?????? ???????? ???????

01

A216 WCB ??? ??????? ANSI B16.34 ????? ???????? Valve

01

???????? ????? ??????? Valve

01

A216 ?????? ???????? 1500LBS WCB ???????? ???????

01

A216 WCB 900LBS ???????? ???????