HG/T 20592  法兰盖 BL 300-16 RF d=48 C

bl300-16RF d=48 C

WN50-150RF B=46.3

WN125(B)-16 RF1601250-1

SO40-900RFJ=6ch

47021PL600(B)-6RFR

DN65/PN63/11B S=5.220R70 RF S=3rf5 RJ RF Sch8H@RH@R

bl25-150rf.180R

wn25-900 rf s40�56=3.500-10RFF0-1F(B)00-1/

wn200(b)-300 rf s=12 Sch40 ff/-F

WN350-150