Transparent Glass Cup Surface Metal Film PVD Coating Decorative Electroplating Processing Service High-transmittance coating technology for glass cups and transparent glass crafts. It achieves beautiful metallic & rainbow iridescent effect without blocking light, high adhesion coating will not fall off glass surface. Technical Specifications Component Specification Bias Power Supply 1 Set Rotation Stand 1 Set Heating System 1 Set Structure Vertical Front Loading or Vertical