HG/T 20592  法兰盖 BL 150-6 RFB)-1/O

BL 150-6 RFB)-1/O

WN 40(B)-16 RF S=5Fp

PL15(A)-40 FF A1

SO 35016-16 RFRF20-1

LWN100-300RFSch60 S=17.48RJ&qu-r

wn350-300 mf

WN 3"-150 RF Sch40S5-2 RF Sch40 RF

BL500(A)-40 RFL5c2@RFFF551)5 RJ-MS=4JF/

WN300-150 RF Sch5S9 gpampampch80RFRF2R@FF rf00(