GB/T 12459  弯头 DN 300-7.7590EL

DN 300-7.75 90EL

DN250-Class300 BL RF0

WN 1000-150 RF 12.70

BL 80-150 RF Sch80F@4 Rch4406R-1500 FF@4 Rch47LGf000 RFFF ScF&@��@RF@�

PL 125(B)-16 RFFF Sch1 RF40@RF@4uRF2F@F000RF=3�

bl65-16rfs=3

47023 FM1300-2.5/98-200

wn40b)-40rf

WN150-150 RF S