HG/T 20592  法兰 PL 400(B)-16 FFRFch806/70217.5 RJ-SF S

pl400b-16ffRFch806/70217.5 RJ-SF S

SO 300-16FMFS=1FM.0h8p0RFhfF160

WN 16-400 RF2F0-R@rf3 ScF@

so 15-1500 rfN840Sa10RF.htmbs d s=4

wn600-300 rf sï

BL20(A)-63RF0300lm16erg62

WN150-300 m RF SCH10ampam4RF5

WN 4"-300 FF S=4.151.0tm

PL16-40RF/u00

wn4