The selection of ground spring mainly selects different types of ground spring according to the weight of glass door.

This door springs are equiped with tempered glass, and hydraulic gymnastics spring floor door closer.

Before installation, the construction shall be carried out according to the plan, and the varieties, standards, opening direction and support pieces of doors and windows shall be checked.

The national standard of floor spring door is that the first-class product is opened ≥ 300000 times (actually the minimum standard of qualified products), the high-quality product is opened ≥ 500000 times, and the European standard is the minimum 500000 times.

Aluminum alloy windows of high quality processing requirements strict tangent.Angle is consistent,for aluminum window grill through fine processing, so there is no obvious crack in the process of splicing.

When you purchase solid wood door 004. you purchase from the factory directly.

Product Description Plastic Glass PVC Slide UPVC Sliding Windows Product Series PVC / UPVC Sliding Windows Profile Type 1.Extruded PVC / UPVC Profile 2.Yes/No fill galvanized steel strengthening reinforcements (1.5mm-2.0mm thickness) into cavities of extruded PVC / UPVC profiles. Profile Color White,Silver,Grey,Brown,Wood Grain Color,Other Laminated Film Colors.Custom Colors Are Available. Profile Finish Yes/No Laminated Film Covered Glass Type Tempered,Insulated,Laminated,Low-e,Float,Reflective,Bullet-proof,etc Glass Color Clear (Transparent),Frosted,Grey,Blown,Green,Blue,etc Glass Layer Single Glass,Double or Triple Glasses (argon filled available) Accessory International qualified hardware of Germany,America,Australia,China Top Brands,etc Grille Grille is made of aluminum or UPVC profile,placed between the panes of the insulating glasses. Screen Fiberglass / Nylon / Stainless steel mesh & Rolling shutter outside are available Function Good Insulation,Watertight,Wind Resistance,Anti-ultraviolet,Anti-thief,Durable,Anti-aging,High Strength Function Data Thermal Insulation U-Value:2.0W/m2K;Sound Insulation:36db;Water Tightness:450pa;Wind Resistance:4500pa;Air Tightness: 0.4m³(m2h)

Aluminum hollow custom exterior shutters can be efficient in absorb the noise from city, road and viaduct.