HG/T 20592  法兰 PL 300(B)-16 RF743

PL 300(B)-16 RF743

SO 15-300 RF20sc@hgcad.cch

PL20-16 RF D=100

SO 25-150 RFrf/»ÂF

bi 4257B=30

WN 40-150 RF

WN 1 1/2"-300 RF Sch80S19

PL50(b)-16rf b0-16 RF46272755�5936012FpaF@5 RJSc002@F9FMFFR�@RF@F NBT0 R rf-10rH@� H pl1Sc10

SO50-150ffS