GB/T 12459  弯头 DN 600-Sch80S45E3Dh8010 RF Sch40f50-1-

DN 600-Sch80S 45E3Dh8010 RF Sch40f50-1-

WN 2"-300 RF S=8

wn 100(b)-40 fm0

so40b-300 rfnF s= na=M120606/42100 k= c=14 l=40RF

wn15- 150rf400=14/ampampa-4.

pl65-10rf d= ff0

1 RF 350-1.6 δ1=8

DN125/PN40/11ARF/RJ K=628.6b=34

BL 65-300 RFh

wn50(b)-3