What are the top ten brands of switch sockets and the top ten international brands? Please help.

20 12 ranking of the top ten most influential switch sockets: 1. Panasonic Panasonic (China) Co., Ltd. II. Olma Electric (China) Co., Ltd. TCL- Legrand China Co., Ltd. Schneider (China) Investment Co., Ltd. Co., Ltd. Delta 6. Simon Tong Qi electric co., ltd. China Putian Hangzhou Hongyan Electric Appliance Co., Ltd. Hongyan Electric Appliance 8. Guangdong matsumoto industrial co., ltd. Guangdong qisheng electric co., ltd (Australia) Clipsal 10. Feidiao Electric Group (Shanghai) Zhong Yi Feidiao Electric. (1) The panel material of the switch shall be imported PC plastic, with good luster, no deformation when folded in half, elasticity and flame retardancy. (2) The selection of insulating materials for the base is also very important. The imported materials such as urea-formaldehyde resin (red) from Bayer Company have good flame retardancy, no deformation when heated, and high temperature resistance. (3) The copper material of the socket should have good elasticity and strong plugging and unplugging ability, and it should be inserted loosely and pulled slightly tightly. Note: If plugging and unplugging is difficult, it means that the mold is not well made, and the copper material is too thin, which is a potential safety hazard. (4) The copper material of the switch has two points. 1: If the copper column is large, you'd better ask the dealer to disassemble it, so that you can see whether the copper material inside is punched with a punch or cut with wire. If it is punched with a punch, it means that the copper material is too thin, and iron sheets need to be added to connect the wires. This switch is slow in heat dissipation and easy to burn out, and there is another one (if the copper material is cut by wire, it is a whole block, and the quenching life of the copper column can be as long as 180000 hours. Note: The size of copper switch column is about 1.5CM* 0.7CM* 0.8CM thick. 2. The contact should be made of silver-lithium alloy, which is wear-resistant, so that the service life of the switch can reach 80,000 times, which is better than the silver contact. I suggest: olma. Beijing Panasonic (not made in Shanghai). TCL- legrand. Top ten imported original brands 1. Germany yongnuo electric (JUNG) 2. Olmo Electric (AULMO) 3. Remo Electric Company of Switzerland (LEMO) 4. Meiton Electric (MEITON) 5. Italy buchino electric company. France Beiye Electric (Beiye) 7. France Oml (Oml)