
Welding consumables - Rods, wires and deposits for tungsten inert gas welding of non-alloy and fine-grain steels - Classification (ISO 636:2004)
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
Welding consumables - Rods, wires and deposits for tungsten inert gas welding of non-alloy and fine-grain steels - Classification (ISO 636:2004)
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻