Use kerb stone mold must pay attention to maintenance and maintenance

1. After long-term use of the curbstone mold, the edge must be sharpened. After grinding, the edge surface must be demagnetized, and it must not be magnetic, otherwise, it is prone to blockage.

2. The edge punch molds are prone to breaking, bending and smashing during use. The punching.......

What is a contained entrance? Contained entrance is good

The entrance, connecting a transitional space inside and outside, is also a buffer zone for people to get in and out of the room to change their shoes and change clothes. It is also known as a fighting room, a hall, and a foyer. However, with the development of the times and the changes in hou.......