GB/T 12459  弯头 DN 40-Sch2090EL50Fc RFS600-

DN 40-Sch20 90EL50Fc RFS600-

abl800-600rf-16rf80sB-1

Wn600-600RFSc6

PL 300(B)-6 RFDN=1300F

WN250B-25 RF S=8

bl250B-2.5RFj

PL 25(B)-16 RF000amRF592H6

pl 350-10 FF HG/T2060d@L0M091(o00

wn150(b)-160fm RF6f/@aRF-chch8066f20Sl.5 RJ RF1.0 1500-4.)0@R(o00

W