Hardware is the modern construction industry an essential building materials, both windows and doors industry, the plumbing industry, cabinet industry, the furniture industry, decoration industry, etc., are widely applied to hardware products, small metal parts, not only in these industries play a very important role in connecting, bearing role, but also has a very highlighted decorative role, but if the installation or use of these products contain hardware process, do not pay attention to them, it can cause its small damaged hardware parts and how to prevent damage to the hardware it? You put together following several methods, hope you can help! Hardware damage prevention measures: 1, choose the type of hardware accessories, specifications and performance should be consistent with existing national standards and regulations, and with the choice of plastic doors and windows to match. 2, the width of more than 1m of the sliding window, or install double-glazed windows and doors, should set up a dual pulley, or use the scroll wheel. 3, friction stay hinge not aluminum alloy, stainless steel should be used. 4, with the fastening screws mounting hardware must be equipped with a metal liner, liner thickness should be at least more than twice the distance of the fastener teeth. Not secured to the plastic profiles, nor the use of non-metallic liner. 5, metal parts should be the final installation, lock doors, handles, etc. should be in the window frame and then assembled into doors, ensure the correct position, switch flexible. 6, hardware after installation should pay attention to maintenance, to prevent rust corrosion. In everyday use open light to light off, to prevent hard to open hard off, causing damage.