System-Parts, located in Yuyao, Ningbo,China, is specialized in metal pressing. We have 12 years experience focusing on producing metal air valves, stainless valves and louvers, dampers , fastening and fixing products for ventilation system.Our major market is Europe where we have very good name and market share. The goal of System-Parts is making quality products and offering competitive prices. Customized product is also highly welcomed by us.