分类： 信息化
2014-06-05 16:37:54
With a is the safety of the electric fire box, in the circuit of electric fire box, control temperature control switch, relay, bimetallic strip, hot components in series form a series circuit, the for two or more than two, and multiple relay, relay, bimetallic strip of temperature can be the same, can also have a certain interval, using this scheme, the electric box the safety factor is greatly increased, so that people can be at ease to use electric heat warming himself.We also make the best .
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