Curtain wall panel :(single-sided copper and aluminum composite board) number - state T2/1100-H24.
Common specifications: 1.5-3.0 +-0.05 width <=1000 0, +2.
Common appearance benchmarks:
Scratches: no hand feeling after the slight polishing of baijie cloth;
Adhesion aluminum: allow online polishing, color shading after polishing, preparation of quality inspection records;
Bare aluminum : no periodicity and less than 5 points per 100 meters;
Oxidation: the entire volume of intermittent oxidation is not allowed;
