GB/T 12459  弯头 DN 200-SCh8090ELm-006R0t5RFR

DN200-SCh80-90ELm-006R0t5RFR

BI 406rf 2.0WN 6

SO 25(B)-10 RFh40SrfRFRF6RF=18 S1=186RFF300-

BL600-16FFS=160fFRFcm=RF075F50RFr

wn200-16rfS.6F

WN 1 "-300 RF Sch80314ch.12500F-vl

bl600-600 rj schNmp

WN 50-150 RF S=Rc c=18360.2-200SchmR10

so15-25t45-