HG/T 20592  法兰 SO 80(B)-40 Gb12=125mF205 RFB)-20

SO80(B)-40Gb12=125mF205 RFB)-20

WN50(B)-63mf8.6-1B-6

WN 300-150 RF SCH80

WN 50(B)-25 RF"00-40fm070301.6

WN50-1500 RF S=8rf c=38

pl250a-25RF225RF Sch4010F60F BfmHGRpamparFRFMF00-1.0/30)0-

WN 50-1500 RJRF0-15001RF

SO 100(B)-16 RF

pl450b-10rfc0F s2�