GB/T 29465  法兰 RF 400-1.6 δ0=20

5 RF 400-1.6 δ0=20

DN200-PN10 BL RF Ⅱ

SO 125-150 RF=259MSch/0(a)-16

LWN25-300 RF Sch40 H=140

23 RF1100-1.0/106RF0ARF0

2 RF 800-1.6 δ1=8

WN 50(B)-63 RF

LJ 8"-150 RF Sch40S

2 FM 1500-0.25 δ1=75

BL 300-150 RFRF00 Rf)1 |00 RFF0 RFN450-600RJ&a0R