YongSheng constant force spring a top brand in the world
YongSheng metal products Co., Ltd. was set up in fifteen years, it is specializing in research and production of various kinds of spring, and our customers more than thousands both in China and abroad. It has become the largest one of theconstant force spring R & D and production base, so much,YongSheng constant force spring has been get a recognition and praise from the customers both in china and abroad. We will always supply many products for YongShen’s clients.

The constant force spring has wide application in the car, medical equipment, household electrical, appliances, watches, Home Furnishing, start the motor,and all kinds of wire box etc, YongSheng constant force spring all imported 301 stainless steel, and through special processing technic , or the performance is more stable, more durable!