1. Take out the frame of the switch or socket and pinch it. If it does not break, it means that it is a good PC material. This kind of material insulation and anti-aging are better. The intuitive feeling is that such material is not Will be yellow. 2, the switch socket to be fixed to the wall need to screw onto its base, the firmness of this base will also affect the use of the switch panel, and now some brands are using cold rolled steel production of this base, this will be more durable. 3, the quality of the switch socket module is the most critical, it can be difficult to distinguish from the naked eye, in fact, we can judge through some details, the first generally the better the quality of the sink will be better, in addition to the switch socket behind the fixed thread head screws, good Should be pure copper, and relatively large, and some of the switch socket screws are copper or small, which shows that its quality is not very good. 4, the socket should be purchased with security protection, its jack inside the block, is to insert two holes together to insert it, you can find a piece of iron to try, single plug a hole, should not be inserted Go in. Sign in to send a decoration package Entrance decoration water heater brand switch socket Impact Traffic Doors,Chase Impact Traffic Doors,Durulite Traffic Doors,Durulite Industrial Traffic Door SHANGHAI KENVO DOOR CO.,LTD , https://www.kenvodoor.com
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