
Toothing of chain wheels for roller chains as specified in DIN 8187 and DIN 8188; profile dimensions
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
Toothing of chain wheels for roller chains as specified in DIN 8187 and DIN 8188; profile dimensions
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻