For your chance should reveal how to reduce the damage of metal stamping parts

Should reveal how to reduce the damage of metal stamping parts for you chance to 1, with hardware fittings type, specification and function should be consistent with current national scale and relevant, and match the selection of window of model steel door. 2, push-pull window of width more than 1 meter, or installed double glass Windows and doors, should set up the double pulley, or choose to move the pulleys. 3, friction hinge shall not adopt aluminum alloy material, stainless steel materials should be adopted. 4, with fastening screw mounting hardware, it is necessary with metal liner, liner thickness should be greater than fasteners teeth at least twice the distance. Shall not be tightened on the plastic material, also shall not use non-metal lining. 5, hardware accessories should be the final installation, door locks, handles, etc should be after the doors into the window frame assembly again, guarantee the accuracy of the position, switch is quick. 6, metal stamping parts installed to pay more attention to maintenance, prevent the erosion of rust. In daily use to light off light, prevent hard off the hard drive, damage. There is no noise, have now nylon wheel. It not only push and pull up and there is no noise, and more smooth, light, short service life than the above all kinds of pulley. To make ( The door) Window is normal. To give (running smoothly The door) Choose a high quality of pulley Windows. Inferior pulley on the surface, do manual work is relatively coarse. There is no smooth. Sliding up and not flexible. Small and light metal stamping on a piece of: plastic wood stainless steel rail card buckle is environmental protection energy conservation compound materials