... coating of smooth high-quality diamond films2.various special color of decorative coatings,(not only plated titanium ... zircomium carbide and nitride, etc. carbonization of the film,titanium3. zirconium,gold,silver,aluminium,copper,and so on ... the metal film, but also plating SIO2,SI3N4,AI203,Sn02,ZnO ... , accessories and so on the surface decoration special colour film