HG/T 20592  法兰盖 BL 50-40 FFFMF=0 d=18056.6t0-100¦

BL50-40FFFMF=0 d=18056.6t0-100¦

1 CRF450-1.6.0/forum300rf.0/6.10r

1 FM 1200-0.2520δs=20

1 RF 800-0.250�RFB/=16

1 c-rf 450-0.6 c=45

1 cRF 550-0.6-600RJ

1 rf 450-0.6mpaampampamp2

1m900-0.65 Sch40=622C=45

2 A37FRF2/0-0.7B=4RF0R0 RF=1327.6

2 B5RF(B)-