主要的产品分为：铝制散热器、铝制面板、铝制音响喇叭管、铝制装饰片等系列产品。
Main products of Zhixin are divided into four series: Aluminum Alloy Heat Sink, Aluminum Alloy Front Panel, Aluminum Alloy Enclosure, Aluminum Decorative Parts.
目前各类道口采用的电铃及一般晶体管音响装置，存在着音量不易调整，噪音干扰大等问题。
The prior various crossing adopt electric bells or ordinary transistor audible devices, and have the problems of difficult volume adjustment, large noise disturbance, etc.
目前各类道口采用的电铃及一般晶体管音响装置，存在着音量不易调整，噪音干扰大等问题。
The prior various crossing adopt electric bells or ordinary transistor audible devices, and have the problems of difficult volume adjustment, large noise disturbance, etc.
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