
Cranes - General design Part 3-2: Limit states and proof of competence of wire ropes in reeving systems
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
Cranes - General design Part 3-2: Limit states and proof of competence of wire ropes in reeving systems
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频