Chongqing Hearty Machinery Group Co., Ltd. is a high-tech enterprise that develops and produces valve seats, valve guides, spring retainers, valve cotters, valve bridges, valve rotators and other parts of internal combustion engines, and provides product design and technical solutions. It has 5 manufacturing bases and 6 holding subsidiaries. At present, it's products are all over the domestic and European and American markets. It has the first-class professional technical team and independent intellectual property rights. It is a leading enterprise in China's internal combustion engine parts industry.