HG/T 20592  法兰盖 BL 50-10 FF D= K=120 C=162 rf/u00c3/u0083/data

BL50-10 FF D= K=120 C=162 rf/u00c3/u0083/data

SO 130-150 RFcsrcar0rf°RF C=20 b=114 -HG/T2F/а

WN50(B)-900 RF SrSaa=89 s=45 pn25孔40 RFF S2

WN40(B)-25rF¦Ãƒâ A=60.3 B=H1=76FM°WN5

SO200(A)-600RF25/4-6 MFM4189 d=78.5rf F

WN150-16 FF Sch400pl6 l=19