Switch production process is relatively simple, and the technical content is relatively low, generally as long as ten dollars. Due to thin profits, there are fewer inferior products. There are many kinds of switches on the market, consumers often do not know how to choose when they buy, and the editor will teach you how to easily identify the switch. Distinguish key points Five-hole sockets, telephones and computer sockets are expensive, requiring eight or ninety yuan. Therefore, it is easy to buy inferior products. Everyone should focus on the quality of these two kinds of sockets. See details The detail of the switch shows the work of the manufacturer. There is no big difference between the panel of the switch and the work inside. There is no big difference. Everyone can open the panel and look at it. Some of the brand's switchboards have a code for the machine's interior painting. These codes are clear, and even when rubbed by hand, there are no ink marks. See materials The quality of the plastic used for the switch panel is PC material, which has certain toughness and is not easy to break. However, the plastic used in inferior products is often brittle and is broken with a little force. Plastics not only protect the internal materials of the switch, but also the flame retardancy of good plastics is better than inferior ones, and the safety performance is much higher. The tin-phosphorus-containing copper sheet is the best in terms of strength, toughness, and elasticity, so good switches are used to make the switch and socket springs. The tin-phosphorus alloy is dark red and easily distinguishable from bright yellow brass. Silver has a strong conductivity, a small amount of heat, and a good safety factor. Therefore, a silver layer of a good switch is used as a contact. The poor switch is only coated with a layer of silver, and the quality is not guaranteed. Switch socket buy brand water heater brand switch socket Stainless Steel Door Handle,Stainless Steel Handle,Kitchen Cabinet Door Handle,Door Handle Stainless Steel Wenzhou Shenghong Metal Products Co.,Ltd , https://www.shenghonglock.com