HG/T 20592  法兰 PL 250-25 FFh05 RFch4.66 RFWN35

pl250-25 ffh05 RFch4.66 RFWN35

2 FF 700-1.620δ1=10

WN32-150 RF Sch40 RF s=20S

WN150(A)-160 M S=10 RF0M S==10Sch40SFSCH10

WN 600-300 RF S=14

3 RF 1200-1.6 S=101.6/84-150 s=140L δ=2 A

BL25-150FFf 1-16ggS=1.7/uSc

WN100-300RFS=9

BL 3/4"-1500 RJ

SP