GB/T 12459  弯头 DN 150-Sch16090EL.3

DN 150-Sch160 90EL.3

wn50-600 rfschF5 RFh RS@LW

WN 200(B)-25 RF�¢ S

WN350-600FM S0M B=34,(B)-4c FM46=4 ch80 d=138 S=70 S=1

so65-150rj0-1b RFrfch806010RFf6ch16S210

PL20(B)-16 RF D=100 d=2000

SO50-150 RF unde Sch40

WN 32-40 RF/60- K=1

SO350B-10RF b=