
Austenitic, austenitic-ferritic and ferritic longitudinally welded stainless steel tubes for the food and chemical industry
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
Austenitic, austenitic-ferritic and ferritic longitudinally welded stainless steel tubes for the food and chemical industry
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频