Welcome to Kathysia Industrial Spring – Founded in 1957, having more than 60 years of professional experience in this field. Kathysia is a designated spring products supplier by the Chinese ministry of machinery industry, and a member of China spring association. One of Chinese leading catalog source of stock and custom springs for MRO and OEM applications. Kathsia Industrial’s 60 years tradition of success was built on having both the largest stock spring selection in the world, as well as offering custom spring manufacturing services to fit your exacting quality standards. At Kathysia, we believe is superior customer service and keeping it simple, where one order equals one shipment and one invoice.