Door Materials: pure copper and bronze Suitable for villa, higher end home building, hotel and other commercial place Various colors are available Techniques: oxidized, embossed, spray-coated, hand-assembled and arc welded OEM services are provided Accessories: lock set, upgraded handle, tamper-resistant mechanical fastener and mosaic type thong Functions: shock-, sound-, moisture-resistant, warmth preserved, anti-pry, anti-drill, guards against theft