HG/T 20615  法兰盖 BL 150-150 RF S.25 90

BL 150-150 RF S.25 90

wn50-300rfb=44.3F Sch40S300 RF 1700-RF0.6M.0/5/WN

PL350(B)-10 FM1001Ff200 RJu0

SO 1 1/2"-150 LFM23-500rf12)-

LWN300-40RJb50-300rrf0600RF

PL350-10rf6 RFR CfR1c25 RF Sc2R

WN 40(A)-25 FM S=3.5

SO 150-150 RF=76 a=60304w.h

so500