GB/T 12459  弯头 DN 25-Sch10S90ES0090 S RF/25m1t4 FM1200-00-1.RJf/

DN 25-Sch10S 90ES0090 S RF/25m1t4 FM1200-00-1.RJf/

3 RF 500-1.0 δ0=14

WN 20"-300 RF S=13

WN20-160RF.0/

SO40(B)-6 RF/u00e5/u0088/u00b6

BL50-150RF,S6 D5 Sc0-0.6 δ=61

WN600B-300RF SCH20/89

bl25(b)-10RFFM00

BII 120019004E B16.5S*3 S

wn15-150 rf