... Construction Machinery Co., Ltd. is specialized in the wholesale and retail of Komatsu, Daewoo, Cat, Hitachi, Hyundai, ... , Xuanhua, and Pengpu bulldozers; parts of construction and mining machinery; Cummins N, V, K, H, and M series engines; mine and public equipments ... such as pneumatic picks, air operated machines, rock drills and down hole ...