HG/T 20615  法兰 LJ 300-400 RF

LWN 1"-300 RF Sch40

LJ 300(A)-400 RF

LWN 25-600 RF

3 FM 400-2.5

bl250(b)-25rfb/0+f/-

LJ 20(A)-400 RF

WN1000B-150RF S=18

2 RF 1000-1.6 δ1=10

WN100B-40RF@4150 FFFR01Aa5 RJ0RFFF-11b0-0RF75

2 RF 1000-1.0 δ1=10nfRF6Sc2@RF@44pam RFS5 RJRbfch150755-R