GB/T 12459  弯头 DN 1000-Sch10S90ELลพ4000quo

DN 1000-Sch10S 90ELลพ4000quo

WN400-300 RF Sch40RF/c=1/u00

WN 125(B)-40 RF S=6so200-

WN50-300 RF S=5.16

20592SO200(B)-16RF18p30

2 CM 600-0.2520δ1=0 RFt

WN 25(A)-40 RF

BL100-600 RF6027a

wn40(a)-25fm.5 ÃjRÃ=43.9.00Ff4

BI 6001F0EL0rf0ch4F2RRF BB