1) product types: window frames, door frame, curtain frame, cladding wall frames 2) opening methods: turning, sliding, fixing 3) surface treatment: A) fluorocarbon (pvdf) sprayed B) acrylic sprayed C) powder coated D) light or dull electrophoresis painted E) wood-grain painted F) anodized Inner packing: plastic film Outer packing: wrapped with brown paper
