批发供应听筒线伸缩疲劳试验机

本机专门测试卷线、听筒线之使用寿命，测试时，试件于通电中被气压动力连续往复拉伸收缩，

至电流中断或到达设定次数时，检查其受损部位及伸缩次数。

This machine is specialized in testing service life of telephone handset cords. During test, the specimen, which is in electrifying, will be stretched and shrunk reciprocally by pneumatic driven until the current shuts off or the preset numbers are reached, then detect its damaged portion or flex times.