Hongsheng Oil Co., Ltd. is located in coast city dongying ,the base of china second largest oil field ?Shengli oilfield ,300 kilometers away from Qingdao port and 400 Beijing city. Our Company has more than 600 employees including 213 professional technicians ...

Gansu Xinzhongtian Industry and Trade group co., LTD. founded in 2003, the company registered capital of fifty million, six its holdings trading company, total is RMB 107 million.The main management coal trade.Mining development, petrochemical, mining ...