Copper and plastic coefficientofexpansion, and, therefore, more close to the plastic used in electroplating electroless copper plating coating layer as conductive.
金属铜与塑料的膨胀系数比较接近,因此,在塑料电镀中常用化学镀铜层作为电镀的导电镀层。
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Wood in the high temperature coefficientofexpansion will obviously, consumer can carry on some simple wooden through the maintenance, prevent the "heatstroke".