GB/T 12459  异径三通 DN 1000×1000×10-Sch160TRapampquo

DN 1000×1000×10-Sch160 TRapampquo

pl80(b)-10 rf b1=纹

NB/T47023 FM600-2.5

3 RF 500-2.5 δ0=10

wn50(b)-40 rfп©Б∙═п╠Б√└п

BL300-25RF

WN 3"-150 RF Sch80S

pl32(b)-6rf6.5 Ãââ‚1-

wn25-150 RF Sch40

BL40-1500 FM ScD=0R0 /