Product name: Tension spring
产品系列
Note
In this series,those provided with LOGO are for display only and will not be sold(except for those bearing ZHENGWEI logo).Fabricate according to customer's design and authorization.
Overview:
选用德国琴钢线材料用电脑设备精确生产，再电镀环保镍的特殊定制拉簧，特点用10万次不变形，弹力好。
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