GB/T 12459  弯头 DN 550-Sch30180ES

DN 550-Sch30 180ES

47065.3 B149

PL20(B)-16 RF d=56 K=73 B1=34.5 f1=1

WN 50-150 RF4379

2 A8618��.5 RJ40��-4.0 FFuo241A�cF@�

WN 80-1500 GF8.FRFS5 RJ2A=F6m386@RFRRF@AFF

BL 80(B)-10 RF

2 A47447023

BⅡ3674

bi 73840 RF500 FM0/120-21500S==0S@0