Metal coil die springs are widely used in molds, jigs, industrial clutches, brake components and various mechanical components, etc.
Japanese standard spring classification: super heavy duty DB teal mold spring, heavy duty DH green mold spring, medium duty DM red mold spring, light duty DL blue mold spring, lighter duty DF yellow mold spring, etc..
International standard classification: SJL green mold spring, SJM blue mold spring, SJH red mold spring, SJB yellow mold spring, etc.
Different colors represent different loads.
