HG/T 20592  法兰 PL 300-16 RF RFҝRFF@443)-16GRF0 rf=p

PL 300-16 RF RFҝRFF@443)-16GRF0 rf=p

2 CT 300-0.620δ1=16FS89

WN80B-300RFsch160FFMmpam

WN 600-1500 FM S=40

wn80b-63 fm=44 H=45

2 FM 1000-1.6 δ1=10 rfF@ï؟½Sc�RFf/p5RFSf sch2S5 RJbذ F Sch40PL RF â…،00 R

LWN20-150 RF Sch40S H=199

pl250-10r