GB/T 12459  弯头 DN 150-390EL.601500-

wn100b)-16rff Sch88 &

SO15-16FM0-1.02501

DN 150-3 90EL.601500-

wn200-10mrf-24 RF20RF C=244=280 f1=3 Bwn20

WN32-150RF S=3

pl40(b)-16 fmSc

WN100-2500RJ Sch1658-130h=217e.5 R) FM S=50b-934F3

WN 40(B)-16 RF

wn80b-25rf S

wn32(b)-25 rf，s=l50-f/