HG/T 20592  法兰盖 BL 400 (B)-16 FM.57021 C

BL400 (B)-16FM.57021 C

bl20-16m0�h120-40

BL150-25RF=¯(B)-

WN 600(B)-25 RF S=11FS=3/196-

PL100-16RF AA=78=4-30e6F0ScF S12/95 RFS53 A=3

23 FM450-1.6/42-0RF

WN 8"-300 RF Sch8040CH86rfssh80HF26MRF98 a Sch160F-25@S

asme b16.5 bl200-150 rf

wn40B-1