I
1. No pollution, economical
The production process of color coated steel plates has little harm to the environment and can be recycled, which greatly reduces the pollution to the environment. In addition, the weight is light, which can save the materials of load-bearing structures and reduce the cost.
2. Convenient processing and easy construction
Color coated plates can be rolled into corrugated steel plates of various shapes and lengths according to needs. There is generally no overlap in the middle, which is simple to construct and has good waterproof effect.
II
1. No obvious pores, bubbles, stacking and wrinkling are allowed.
2. No pitting, impurities, scratches, dirt and uneven coating are allowed on the surface.
3. Severe coating omissions, coating shedding, color mixing and adhesion are not allowed. The coating is not allowed to become brittle, yellowed or lose gloss due to excessive baking.
4. No obvious color difference or uneven gloss is allowed.