HG/T 20592  法兰盖 BL 150-16 RF075R16r

20529bl150-16rf075R16r

WN20-160 FM6 r/3 S=7-1

WN 500-150 RF5/undefineSmp

WN 1"-150 RF S=3 A=3

BL150A-16 RFS=10H

法兰 WN400-150 RF S=12.500

PL50-16FF B=62 b

WN50-300 T SchGH80-f/F/ch80S S=W

1 CRF 350-0.620δs=18015Sch415=8

WN500-600RF S=28 wn