HG/T 20592  法兰 SO 400-63 RF RF Sch40F Sch40S

SO 400(A)-63 RF RF Sch40F Sch40S

SO 250(B)-16FM

WN15-150RFSCH80S021Rf-15f undm1@F´FuB)-16RF

SO 150-150 RF S=6

3 FM 1800-0.6 δ=95 H165

PL 200-10 RFF=12=25 F

B WN1400-150 RFTF0=3 C

so 25(b)-150 ff

DN 125×1200-Ⅱ-3 RE

BL15-63FM@47021 c=2RRF2RF 1 JB/