HG/T 20592  法兰盖 BL 1200-16 RF RF00 RF Sc20）F50 FF

BL 1200-16 RF RF00 RF Sc20）F50 FF

SO200(B)-16 RF0401/0-4.

BL200-16 tj b--900 RJ B

SO 350-150 RFRFMF/F8/ÂF 2.5

WN 50-150 RF Sch10S-16RFd=410 FF RF Sc

WN50(B)-63FM3/u00a3/data/src°h80c=350

bl 450- 40 rfRF00RF102=930-1×6

1 M 300-1.0 δs=4

WN 15