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Longdo(HARAY) IS ONE OF PROFESSIONAL CHINESE MANUFACTURER AND SUPPLIER OF CYLINDER HEADS FOR DIESEL AND PETROL ENGINES. The company headquarters is located in Chongqing, the south west of China. The main product of Longdo (HARAY) focuses on bare and complete cylinder heads, camshafts, cylinder head bolts and other various auto parts for diesel and gasoline engines. Our factory is located in Yongji city, Shanxi province. We began the development of the casting and machining of cylinder heads for diesel and petrol engines at the beginning of 2001. We have OE products for Chinese car maker and aftermarket products for global customers. The factory has four comprehensive casting production lines and four robot casting units. The annual production capacity of cylinder head blanks reaches 650,000 units. It has one integrated production line and eight professional production lines. The annual production capacity of cylinder head products is 550,000 units. One production line can produce up to 30 tons per day, and can reuse 9,000 tons of used waste sand for recycling per year. It has six patents for utility model, first-class manufacturing equipment with advanced machining center clusters, and a large number of high-efficiency intelligent flexible production lines. The quality control system adopts advanced detection equipment such as German three coordinates. Longdo(HARAY) enjoys an excellent reputation for reliable quality, competitive price and on time of delivery. We sincerely hope that we are able to establish business relationship with you in the future.