17 подписчиков
59 видео
联轴器
旋钮
冷镦工艺
Have you ever seen anti-theft nuts that require tools to be used together？
Do you know what bending processes are used for sheet metal?
7种螺纹加工方法
solar panel installsation hook
solor panel
太阳能板压块+安装
Solar panel roof installation hook
Various installation accessories for solar panels
DIN 982 Hex Nylon Lock Nuts
