HG/T 20592  法兰 JPL 25×50(B)-16 RF S=5

Jpl 25×50(B)-16 RF S=5

SP-4

PL 20(B)-16 RF

WN 16"-150 FF Sch80S

A WN 32"-150 RF B=Sch40SM S=3.5Lt3.5F�@4п�RF0@RF R

法兰 PL125(B)-10FF

HP-1

PL 100-16RFR16M3560-

SO 250-16 RFS1=2010000R

so450(a)-16 rf&ampampam040S0S-150 RF S=8�d�