Haiyan Longcheng Standard Parts Co., Ltd.
is a well-know China Hexagon bolt manufacturers
and Hexagon bolt factory
, It is located in the middle section of Shanghai-Hangzhou Expressway and is frequently located in Chapu Port. TNow it is renamed Haiyan Longcheng Standard Parts Co., Ltd. It has a history of more than ten years. It specializes in manufacturing and selling all kinds of wholesale Hexagon bolt
products and has the right of self-export. The company relies on the quality management system of ISO 9001:2000 to strictly control the quality of products and work, to achieve interlocking, using PDCA cycle to ensure product quality and meet customer needs.