How about YUAN SINE SPRING independent R&D capabilities?
YUAN SINE SPRING ENTERPRISE CO., LTD has been committed to developing our independent research and development capabilities to meet the needs of our customers. Experienced experts and designers consist of our R&D team, who constantly create innovative ideas to develop new products. From prototype layout, usability testing, to perfecting the design before the launch of torsion spring, our R&D process has been completed, keeping us ahead of the industry.
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Developing into a large scale enterprise, YUAN SINE SPRING is well-known in the manufacturing of custom torsion springs. We have defeated many other competitors and stand at the top. As one of YUAN SINE SPRING's multiple product series, extension springs series enjoy a relatively high recognition in the market. Our dedicated QC team takes immediate measures to improve the quality of this product. Constructed from synthetic metal, it is of greater quality. YUAN SINE SPRING strictly performs in the aspects of product quality, delivery time and after-sales service. Its surface treatment and coatings are well-controlled for corrosion and wear resistance.

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