GB/T 12459  弯头 DN 50-Sch10S90ELF5

DN 50-Sch10S 90ELF5

BI 4500 Fb)

BL450-16 RJ- ScF@ï MFb

PL 40(B)-16 RFj0.wn0RJ S0RF r

SO 50-150 RF

SO 50(A)-25 FM b=0

PL100(B)-25 RF111)-020-25fm RF0

bl 65(B)-16 RF

PL100-10FF 500 RF(B-1.62rf s=64)-10 RF)0 RF40 H62 s=

BL8-16RFRFAS.4-14-162/u0h40GRFf