Features: 1) Available in mill finish, anodized, powder coating, electrophoresis, wood grain with various colors. 2) Alloy: 60 1)Waterproof, airproof, soundproof and heat insulating with double glazing and thermal strip between aluminum sections.2)Open ways: single way inward opening, double ways inward opening, inward tilt and inward opening3)Various finishing and colors options.4)Pack: Each ...