弯头 DN 200-690ELA)M700-1.09 b=´=

DN200-6 90ELA)M700-1.09 b=´=

WN300-10RFS=.1010C=1104=40-

bl400(B)-63 RFSch40件RF

BI 34005-00RF42FsrfSch0RF Sch40RF Sch4909RF40-6rfSc

a wn1350-600 rf

WN150-16fm/0sam

BⅡ2600)-

SO150(B)-25RF8 d= K=2500 RJ0 c=28 k=510 na=1.71.740SRF=c3

A WN1050-30