1. The commonly used floor slabs are: marble, granite, ceramic tiles, cement (mixed with yellow sand, and some with glue) paving, and the surface finish, texture, pattern, and color of a large area of ​​the ground should be uniform. Consistent, no color. 3. The wooden keel (concrete joists), wool flooring, and upholstery used for wood flooring installation must be firm, straight, and preferably coated with preservatives. 4. The hardwood surface should be paved with nails in the middle and four sides. There should be an expansion gap of 5 to 10mm between the wooden floor and the surrounding wall, and it should be suppressed by the baseboard and the "foot of the horse" should not be exposed. 5, wooden floor joints tight, without leaving any traces, the joint position is staggered, sticky nails, walking on the top no loose feeling, and should be no sound. 6, the surface of the wooden floor should be polished smooth, no planing, no thorns, no scars, clear wood grain, smooth texture, uniform color. Flooring Marble Cement Floor Tiles Compression Spring,Irregular Compression Spring,Customized Compression Springs,Compression Spring Processing Dongguan Jiufukai Hardware Products Co., Ltd , https://www.jfkspring.com
2, the surface layer and the bottom layer must be completely bonded firmly, can not knock on the empty sound, the joints straight, slit width, full and firm.
Wood floor pavement appraisal standard