1. Look at the appearance: A good switch is very particular about the product manufacturing process. The plastic corners and plate brackets are free of burrs and flaws. The panel has uniform color, high brightness, no pockmarks, black spots, and pinholes. The nylon rear seat has no odor. 2. Trying feel: The hand-feeling switch has high internal precision, and the switch opening and closing sound should be crisp, no noise, no blocking feeling, and the toggle action is rapid, and the use of such a switch will not easily generate an arc. The socket shall be tested with the plug and the plugging force shall be tested. The plug shall be easy to insert and the strength when the plug is pulled out shall not be greater than the strength of the insertion and shall be accompanied by the metal tone. 3. View structure: Observe the opened switch and the back seat of the socket to see the size and thickness of the silver contacts on the switch. The socket depends on the thickness, area, and gloss of the copper sheet. The conductive metal material is a good switch that is thick, wide, and high in brightness. 4 see the logo: Look at the brand identity of the product, the port identification on the rear seat, whether the 3C certification mark is clear, whether there is a production model and production date, and if there is no or unclear product, it is not regular. 5. Note installation: Since the switch socket is only a semi-finished product at the time of purchase, only the switch after installation can be called a finished product. The quality problem of 70% of the switch socket is reflected in the installation process or after installation. The steel frame switch can solve the problem of installation procedurality well. Quality is better than plastic type switch. However, not all steel frame switches are good products. Try to check the strength of the steel frame by hand. If it is too thin or the structure is unreasonable, it will also cause deformation in the installation. 6. 掂 component: Look at the amount of product, good products are generally real materials, heavy weight, and poor products in order to reduce costs, cut corners, generally lighter, so that the lack of strength of plastic materials, metal materials, conductive ability is weak, easy to cause security risks. Furniture brand water heater brand switch socket steel frame Stainless Steel Roller Shutter Door
Using advanced 201 stainless steel sheet, precision roll forming production process.
User-friendly design, stylish,durable ,safe anti-theft ,lighting, ventilation ,aesthetic ,practical, thermal insulation and free adjustable ,anti-peeping.
Intelligent control, multiply driving modes.
Variety of colors and styles optional.
Providing a comprehensive,specialized system solutions as users different requirements.
Integrated protection and decorative features together,the best replacement of traditional theft network security replacement; flexible way open ways, supporting hand control, group control. The door could be your safe rescue channel when in emergency.
Stainless Steel Roller Shutter Door,Remote Control Roller Shutter Door,Stainless Steel Grille Roller Shutter Door,Electric Stainless Steel Roller Shutter Door Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.spiralfastdoor.com