HG/T 20592  法兰 SO 20(B)-25 RFpampampwd0 RFDRF RF-15

SO20(B)-25RFpampampwd0 RFDRF RF-15

so 80-150 rf sch4 RF0JSF5 RFS460900H0s)--RF&900 RJ

WN 80-150RF Sch80s2p2 Sf100RF S/6

BL200-150RF´=5ch40 R

3 RF 1200-6.440.0ÃŽÃ5

2 G 3000-1.620δ1=14SCH80S0

WN25(A)-63RF S=a/src�F4M6

PL 500(B)-10 RF6��