Quality requirements of pure aluminum plate

Quality requirements of pure aluminum plate:
1, the surface of the pure aluminum plate should be cleaned without cracks and oxidation debris.
2, the surface of the plate aluminium can have the defects of compression, scratching and roll indentation, but the depth of the aluminum alloy plate can not exceed the error range of it, and the minimum thickness is ensured.
3, technology cladding aluminum thick plate should be coated layer, coating layer to avoid bubbles.
4, the surface of the aluminum plate sheet should be within the range of thickness difference.
5, other requirements: customers and aluminium products suppliers themselves.