法兰 BL 150-600 M S/T20615ampam;a0 rf A=678-4

3 RF 1000-2.5SC59 WN450-16

BL150-600 M S/T20615ampam;a0 rf A=678-4

WN150-150RFSCH10RF.1

PL 40(B)-10 RF

wn65-63RFFF0 RF50-0.6 δ=5m6 RF 65-13 b=

WN250-150 RF Sch40 H1=

SO 2"-150 RF

WN25-300RF H:372 sch

NB/T47023 M900-1.61

WN25-600RF sch4

WN150