GB/T 12459  弯头 DN 800-2690ELRF

DN 800-26 90ELRF

WN65-40 RFв–

WN500-16FM0

bii4000fF-

SO200-150FF

WN350-600 fm-

so80-150 m

WN150 -100 RFSch4000

SO450-150RFch RJ00F4dat

WN125-1500RJ Sb)-16 50RFS.6/0RF(h00 BB=275 b=4 d=320 f1=3-0.6 �D=RF D=400 BB=275 b=4 d=320 f1=3RJ Rch4@0S2