Heat treated steel component feature resistant coating for 20% enhancing durability, tested to withstand 40kg pressure and 10, 000+ operations cycles engineered door hinge conversion kits ensures smooth window operations and reduces wear with high grade metal construction Stabilizes window movement during daily commutes or extreme weather, jams caused by road vibrations or aging factory installed hinges design enables direct installation without adjustments, 30% longer life than standard hinges for consistent Crafted from steel, it has excellent resistance and wear resistance, ensuring normal work in various climatic conditions and ensuring and reliability, Manufacturer: Whoasyst