
Industrial Pipework - Carbon, Alloy And Austenitic Stainless Steel Flanges And Flanged Fittings - Terminology - Dimensions
出版:Association Francaise de Normalisation

專家解讀視頻
Industrial Pipework - Carbon, Alloy And Austenitic Stainless Steel Flanges And Flanged Fittings - Terminology - Dimensions
出版:Association Francaise de Normalisation
專家解讀視頻