1. The surface hardness can achieve 5H or more. 2. We also can provide plating membrane within transparency ranging from 0%-45% as request. 3. Via peculiar physics & chemo-instrument overlay a kind of special coating on plastic material (pmma, pc). 4. Coating different kinds of dielectric film on PMMA brought interference of light, thereby produce all manner of color. 5. A great variety of coating technology for choice : light transmission ratio, abrasion resistant, high temperature resistant, anticorrosion , antioxidation , radiation protection, electrical conduction, magnetism conduction, insulation and polychromy effect. 6. Many kinds of function like antireflection, two-sided electrostatic prevention, antidazzle, anti-fogging for choice. Via multicolor plating technic make up monotone bright aluminium/nickel effect, strengthen IML surface ornamentation visual effect.