Dongguan Yongsheng Metal Products Co., Ltd is a company engaged in the metal products. Our business scope includes metal products, metal & plastic products, main products are constant force spring, spiral spring, display stand spring, power spring, toy spring, wind spring, machinery spring, engine start spring, measure tape spring and kinds of spring steel products. We supply high quality products and...

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Application of Constant Force spring
1) motor brush
2) industrial tools
3) height adjustment
4) medical and healthcare device
5) roller shutter or window balance
6) automative and transportation device
7) store propelling shelf and POP display

Application of Spiral spring
1) timers
2) cord retractors
3) counter balance
4) wind-up toys and games
5) electricl and mechanical reels