分类： 信息化
2014-04-15 15:37:44
The quality of shrapnel can also affect characteristics; shrapnel between ON and OFF thermostat switches play a very important role, if shrapnel with stainless steel material to do so, and the result is that the life not all great. Rivets as to the most important parts of the external links, and the need to achieve the over current material having a small coefficient of expansion; if iron or aluminum material, in the case of relatively high temperatures, it may cause shell burst and damage the switch. Therefore, the general material is nickel-plated brass.
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