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.

Product Description Alu round Aluminium Fix Aluminum Fixed Window Brand Name KDSBUILDING (China) Product Series Aluminum Fix Windows Profile Type 6063-T5 Aluminum Profile,Thermal Break & No Thermal Break Profile of international top brand Profile Color Normal Colors:White,Grey,Matt Black,Wood Grain,etc 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. Certificate AS2047 & AS/NZS2208 & AS1288,GBT7106 & GBT8478 Function Good Insulation,Watertight,Wind Resistance,Anti-ultraviolet,Anti-thief,Durable,Anti-aging,High Strength Application Application:Commercial buildings and residential buildings including offices, hotels, hospitals, schools, supermarkets, factories, apartments, villas, houses, etc.

When you purchase upvc profile double hung  window 006, you purchase directly from the factory.

Cheap and high quality doors windows in KDSbuilding include black sliding glass window.

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