HG/T 20592  法兰盖 BL 125-16 RF0F=10

BL125-16 RF0F=10

WN125B)-63 RFer6N60f5RFB)

WN25-150RF10/0055 FM800-2.5

BL50-16 RFRF HGSOF0-0.6-15

hg/t9112 so50-16rf40

WN 40-2500 RF3/f.uRF0RJ500)n40(

SO125-150 RF A

SO 125(B)-25 RF B=5

SO15-1500 RF90-155 F==611

WN80-40RF S=≥4.5tp:ch�15010c=-RF�5