Dongguan Guangqing Electronics Co., ltd started from Taiwan Yuhsing Spring Co., Ltd since 1990, dedicated in spring field for 20 years, specialized in FLAT SPRING, POWER SPRING & CONSTANT FORCE SPRING, is the professional designer, manufacturer and solution provider. With the professional team members of Physical Dr. & Senior Spring Expert, we could design according to customer drawings or ideas develop out high quality products to assistant structure and meet requirements with the higher performance and more stable quality. Our products proudly served in Appliance, Automotive, Construction, Electrical/electronic, Fasteners, Medical equipment, Sports equipment etc, solutions widely applied in field of electrical high adjustment, products Horizontal Movement, solar photovoltaic systems junction box flat spring etc. As the professional steel strip products manufacturer, Guangqing not only owns the spacious 6000 m2 producing plant, equipped with full-automatic production machinery and various testing equipments but also certificated with ISO 9001 and RoHs. Our continuous research and innovation in production process, strict quality control methodï¼?developing new technology to assure our customers with the competitive cost, high quality , punctual delivery and top service priority. Product Size:1) Steel strip: Thickness:003mm0.75mm width:0.5m50mm2) Wire size range: 0.002â?? to 0.12â?? (0.05mm 3 mm)