HG/T 20592  法兰盖 BL 250(B)-6 RF=62HF3/u00a3/data9 ãžâ´1=6Bh ScF@ï

bL250(B)-6rf=62HF3/u00a3/data9 ãžâ´1=6Bh ScF@ï

SO600-150 RF

WN 16"-900 RF Sch100

SO3/4"-150 RF

WN 5"-300 RF Sch80S

WN 3"-150 RF Sch40

HP-2 Ш°ШҹШўВ©Ш°вҖҳГўЛҶв„ўГўв

SO 300-150 RF

SO 50(B)-16 RF b=4

BL24&