28 years in Couplings, Non standard parts, OEM/ODM auto parts, auto flanges, flanges, stainless steel parts in China From its 1985 origins, the Hongfeng Precision Machinery continues its rich tradition as an Industry innovator in the design and manufacture of Non standard parts, auto fasteners.Our goal is to provide quality parts with the most competitive prices in the industry. Main products: Hydraulic Quick Couplings, Pneumatic Quick Couplings,