In daily life, the role of hardware is quite large. Inferior hardware will make the window sash open, not pushable, not tight, drooping or even falling off, causing troubles and inconvenience to consumers. The price of foreign high-end door and window hardware has approached or exceeded the price of the door and window itself. Experts pointed out that the price, grade and life of hardware are the key factors that limit the value and life of doors and windows. Consumers should pay attention to some skills and principles when choosing hardware. In general, it is advisable to choose a lock with flexible performance. When you purchase, you can have the key inserted and removed several times to see if it is not smooth, and whether the switch is screwed up is not cheap. Choose a variety of decorative hardware with good appearance. When purchasing, it mainly depends on whether the appearance is defective, how the gloss is applied, and whether the hand feels smooth. Should choose a good sealing performance, hinges, rails, locks, hinges. It is flexible and convenient to open and close and pull several times during purchase. Door and window fittings hardware is a commonly used hardware that is often touched. When choosing, you should pay attention to the following items. Doors, windows and accessories: must meet the design requirements, specifications and models should comply with national standards. Door lock: It should be a double-sided safety lock. The weight of the lock is compared with the hand. The heavier the nut is, the thicker the material is and the more resistant it is to wear. On the contrary, the material is thin and easily damaged. Look at the surface finish of the lock, whether it is fine and smooth, no spots. Repeatedly open to see the sensitivity of the lock core spring. Sliding door: stainless steel, pulley can be selected with hard nylon wheel, pulley frame, generally galvanized steel products. Sealing material: Sealing rubber strip should be used together with waterproof sealing glue. Floor spring: The floor spring of the door should be stainless steel or copper. Before it is installed, it should be adjusted before and after the opening and closing speed for easy use. The hydraulic part must not leak oil. A door closer can also be used. Concerned about surprises Tag: Home Life Daily Hardware Previous: How to create insulation effect for stainless steel insulated water tank Next: How to choose kitchen cabinet hardware accessories? Petroleum Instruments Professional sales of oilfield drilling and production instruments. The main products include standpipe pressure gauge series, mud pressure gauge series, tong torque series, index weight meter series, electronic index weight meter series, sensor series and other products. Our company is one of the main suppliers of domestic petroleum special instruments and meters. Provide supporting services for oil production fracturing, cementing equipment and metallurgy, chemical, food, pharmaceutical and other industries. Products are sold all over the world and major oil fields. A relatively stable marketing network has gradually formed in China. Our company's products are not only widely sold in the domestic market, but also have entered the international market. Since 2011, our products have been exported to foreign countries. Currently, our export countries include Canada, the United States, Mexico, Australia, New Zealand, Russia, Singapore, Dubai, Iran, India and other countries. A good sales network has been established abroad. Petroleum Instruments,Testing Instruments And Laboratory Instruments,Oil And Gas Instrument And Meter,Drilling Parameters Instrument Rugao Yaou Import & Export Trade Co., Ltd , https://www.ntyaoumachinery.com