1. Observe whether the ground and walls at the corners are flat. If they are not flat, use a spatula to smooth them and clean them.2. Put the buckle in the card slot on the back, leaning against the wall, and mark the exit hole of the buckle.
The fixed-type formwork made according to a certain modulus utilizes the bendability of wood plywood to form different radians through high temperature and high pressure to achieve different diameters, so as to complete the formation of curved and toric b