徽章:

加入日期: 2021-04-12
最后一次活动: 2024-11-24
I'm mechanical engineering
Mechanical Projects, 3D models, machines projects, cutting and bending of steel sheets,
structural calculations.
加入日期: 2021-04-12
最后一次活动: 2024-11-24
I'm mechanical engineering
Mechanical Projects, 3D models, machines projects, cutting and bending of steel sheets,
structural calculations.