HG/T 20592  法兰盖 BL 300-100 RF s=50 rjB)0RFJ-S1@F Sch402Sc)0 RF Scho

bl300-100rf s=50 rjB)0RFJ-S1@F Sch402Sc)0 RF Scho

BL FF 5K 125A1.2f sc-15-40b=

3 CRF 350-0.6=191 k=1

SO 80(B)-16 RFFF d=155=12,SMLS,B6

LWN 25-300 RF=35/â‰

20615 WN25-150RF S/u0u00a2/u00c3/u00A

WN400-900 RJ Sch1605)-16 RF

47023 cfm800-1.6

WN20(b)-1