HG/T 20592  法兰 WN 50(B)-63 M

WN 50(B)-63 M

SO100(B)-16 RF D=250 n=4 b=5

BL 250-150 RF Sch40S

WN125A-25 RF

4702 FM400-2.5i

SO15(A)-16 FM1ff2251/=8RFF5mFpC-25RRFM–/т

wn65B-16 RF-152.

PL80-150 RF/� t0/S/335Â4Ј

BL 150-150 RF Sch40S

PL100(A)-10 RF RF/RF)-16RF7.5/0sC-RF-300MF