Adopting the door patent "double pulley and double track movement mechanism", pushing and pulling smoothly and smoothly, preventing derailment and shaking, and long service life. Paste stickers can be freely adjusted, modified wall construction error, good waterproof, easy to install. The product uses all toughened glass, the national standard alloy aluminum material, the aluminum surface coloring uses the high temperature metal baking paint, the characteristic is the outward appearance is beautiful, the gloss is good, the color is elegant, the product all passes the environmental protection test.