HG/T 20592  法兰盖 BL 32-16 FFlFR

bl32-16fflFR

wn65b-63m

WN 20-300 RF sch70

SO 15-150 RF

TH 300(A)-10 RF

1 FM 800-0.6 δs=8

SO 80(A)-6 RF

WN 50(B)-16 RF

B WN 700-600 RF

LWN50-600 FM B=49062RF RF=220Sf sch2de H=410F�؟½@4ï؟½o@40(40RF-R� RF ⅡF Sch10S 5-RmrfRM5M SRF09..2 hRFl.