Constant Force Spring
An ideal constant-force spring is a spring for which the force it exerts over its range of motion is a constant, that is, it does not obey Hooke's law. In reality, "constant-force springs" do not provide a truly constant force and are constructed from materials which do obey Hooke's law. Generally constant-force springs are constructed as a rolled ribbon of spring steel such that the spring is in a rolled up form when relaxed.
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Yueqing Hrya Electric Technology Co., Ltd.
HRYA Electrical was established in 2013,with 20 office guys and 120 workers now.Our products are present in more than 30 different countries from Middle Ease to South American,from Europen to Australia,from Southeast Asia to North Africa.
Yueqing HRYA Electrical Co., Ltd. (Hrya) was established in 2010, and our head office is based in Wenzhou, China. Our Products are presented in more than 30 different countries from the Middle East to South America, from Europe to Australia, from Southeast Asia to North Africa.
HRYA is ISO9001 Quality Assurance accredited, and both quality and safety are of paramount importance to us. Our products have SEMKO and CE certificates. Our main products are Cable accessory, Our experience and expertise: modern and innovative product design, extensive OEM experience, constant new product development, strong capabilities, competitive prices, excellent international market knowledge, professional, dynamic and customer focused staff, flexible trading terms, high quality,and timely delivery.ontactor,switch,relay and push button.
If you have any questions, please do not hesitate to contact us. We look forward to hearing from you soon.
Shanghai Xieneng Spring Co., Ltd.
Shanghai Xieneng Spring Co., Ltd. is a new hi-tech enterprise that acts as both manufacturer and exporter from 2000. In recent years, our company is supported by Huazhong University of Science & Technology, and established a new products research and development center which develops the new products in order to meet market's demands constantly.
We are specialized in all kinds of carbon and stainless steel springs as well as all kinds of heat treatment steel strips. Our products are widely used in various kinds of appliances, such as tool equipments, timers, toys, etc.
In June 2006, our company was approved by ISO9001 System. We always follows the principles of "Quality First" and abide by the contract.
We will work with rigorous scientific attitude, the steady and sure style of work, tide of the fight economic globalization, market-oriented, regarding innovating for motive force, with talents as the core, excellent management, in order to actualize the leap two times of the company. We sincerely wish cooperate with customers both from home and abroad, create the beautiful future together.
