brand	stainless steel	model	Compression spring	Outer diameter of spring	23（mm）
Spring inner diameter	25（mm）	Height of freedom	23（mm）	Standard parts	Non standard parts
texture of material	Stainless steel wire	purpose	Hardware, plastic, toys, cars, batteries, electronic communications, sofas, bicycles, lamps, fixtures, switches, gifts, handicrafts, molds, electrical appliances, various uses	Wire diameter	21（mm）

Compression spring (compression spring) is a helical spring under upward pressure. The material section used is mostly circular, and it is also rolled with rectangular and multi strand steel. The spring is generally of equal pitch. The shapes of compression spring include cylindrical, conical, medium convex and concave, and a small amount of non-circular. There is a certain gap between the rings of compression spring. When subjected to external load, the spring shrinks and deforms and stores deformation energy.

Compression springs provide resistance to external pressure. Compression springs are generally coiled with equal pitch of metal wire and have a fixed wire diameter. The force exerted by a plurality of compression coils (such as a spring) on the body against the external pressure of the bed. That is, they push back against external pressure. Compression springs are generally coiled with equal pitch of metal wire and have a fixed wire diameter. In addition, there are conical compression springs, or a combination of conical and linear springs. According to different application fields, compression springs can be used to resist pressure and / or store energy. Round wire is the most commonly used compression spring, but there are also compression springs made of square, rectangular and special shaped wire.

The steel wire spring of compression spring is used in all types, from household appliances to motor equipment, motors, etc., because it is the required type of spring. By the load acting on them or their ends are compressed, the compression spring is compressed, and the design of the wire attempts to return the spring to its original shape, so that the load is pushed back. Main application directions: medical respiratory equipment, medical mobile equipment, hand tools, home care equipment, shock absorption, engine valve spring.