XUANHUA CONSTRUCTION MACHINERY DVELOPMENT CO., LTD. Hereinafter referred to as HBXG was founded in 1950. HBXG is the pioneer of track bulldozer manufacture in China. Now it has become a state-owned public company, and a leading manufacturer of bulldozers, HBXG locates in Xuanhua, a historic city in the Northwestern Hebei Province only 175 kilometers away from Beijing, the capital of China.