
NON-ALLOY STEEL ROD FOR DRAWING AND/OR COLD ROLLING - PART 1: GENERAL REQUIREMENTS
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
NON-ALLOY STEEL ROD FOR DRAWING AND/OR COLD ROLLING - PART 1: GENERAL REQUIREMENTS
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻