Kj brand National patent three cards Tension lock KJ4 AP with 3 years warranty

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Product Overview

Description


1. The KJ4-AP is our newest model,have 3 years quality warrenty.


2. KJ4-AP slove most of the problem occur in old models such as KJ4-3-A and zincy tension lock which widely used in the market   such as the springs easily to broke,can't lock firmly.


3.With Tuv test Report.


5 advanced details from old model KJ4-3-A which widely used in the market:


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0.1925 s.