HG/T 20592  法兰 WN 80(B)-160 RJ00if RF B=2

WN80(b)-160rj00if RF B=2

PL40-16 RF150rf=≥3.5510000-16 rf

So20-600Rf6170 sc010/70-1c3/RF

SO 100(B)-300 RF62 b=40

A WN1000-150 RF S=10/

WN 600-150 RF S=11

WN400-300RJ3800-WN375

WN100-300 RF 2RF0 RF-40rf5F Schh6@47023 C=13 Kδ=42rf 40

BL50-300T04FS=