Founded in 1994, our company specializes in designing, producing, and marketing all types of engine valve cotters and valve spring seats. In our present state, our annual production capacity exceeds up to 15 million sets. Not only do we produce valve cotters and valve spring seats, but we can produce various types of sprockets, oil pump, cold extruded parts, stamped part, and other special-shaped parts. Our entire factory strictly adheres to the standards of ISO9001:2008 authentication and every product feature zero defects.