YongSheng constant force spring is established in China and looking at the world
YongSheng Metal products Co., Ltd. is a professional and production of constant force spring and all kinds of spring of private technology enterprises. 8000㎡production plant, 100% timely delivery. We also have some raw-material suppliers which has cooperated with us for 15 years, ensure the quality and delivery time.We have 230 employees, including 5 senior R & D engineers and 21 professional and technical personnel, with an annual production capacity of 50 million, we become the world’s top spring in the 15 years, had more than 5000 customers approval and trust in the whole world, the customers over our country and including Europe and the United States, in Africa, Southeast Asia is industry's most influential force spring manufacturer.

The constant force spring is made by the rolled stainless steel ribbon, thought a particular machine to stereotypia the high strength steel ribbon, when it is straightened by an external force. Thereby, the object can go back to the appionted place, comparing with the traditional line spring, the advantage of the constant force spring is, it keeps particular elastic force the route, and route of the prestressing is short; that is say , we can get the necessary elastic force with a shouter route, the original length is smaller than the line spring. The constant force spring application is very extensive, such as liquid crystal display screen and fan height adjustment, curtains, windows and doors, shelves, air nail gun and stapler.