HG/T 20592  法兰 PL 150-16 RF b=3 aa=109

pl150-16rf b=3 aa=109

pl50(b)-10rf s304087025=20(b)- Rb3

wn125-150 fm sch40F2

LF/SE 150-150 RF S=4.500Sfc4e0

so150-25m50rf106080600-10 f1/

20583-PL100-16RF)-25 RF S=91

BL65(A)-150RJfï�

WN40-600FMS4.0(b)-25/B)-RF=55rf

B WN 36"-75 RF B=870

SO12