For regular shape spring,give us your product requests as below:

· Wire diameter

· Outside diameter

·Free length

· Total coils and effective coils

· Surface treatment and the request material

For special springs,we have the service as below:

· Auto suspension spring: we can quote based on OEM

·Disc spring: we can supply springs in stock based on our country standards.

· Die springs: Pls inform us the standards you requested.

· Special-shaped spring :we need drawings when quoting.Thank you.

· Designing service :we have professional team to customise springs according to your request.