Industrial High Quality Copper Hook Approved By ISO 9001

Danying Instrument Hairspring Factory established in 1985,Danying is a professional manufacturer engaged in research,development,production, sale and service of hairspring. We are located in Jiangsu Province Zhenjiang city and have convenient transportation access.

With a wide range, good quality and reasonable prices,our products are extensively use in pressure gauge, aviation industry,shipping industry and other industries.

Our products are widely recognized and trusted by user and can meet continuously changing economic and social needs.

We welcome new and old customers from all walks of life to contact us for future business relationships and mutual success!