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

The ground spring is a hydraulic door closer, but the device that compresses the spring is a worm gear rather than a rack and pinion.

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.

KDS supply window grill design.

Wiht our  beautiful glasses ,  feel the joy of life

Product Description Huge Casement Glass Soundproof Best Price Aluminum Swing Impact Windows Brand Name KDSBUILDING (China) Product Series Aluminum Double Hung 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 casement door 011-1b, you purchase directly from the factory.