
Screwing Taps - Part 1: Technical Delivery Conditions For Ground High-speed Steel Taps
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
Screwing Taps - Part 1: Technical Delivery Conditions For Ground High-speed Steel Taps
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻