Henan Joinrise Mining Equipments Manufacture Co., Ltd. Henan Joinrise Mining Equipments Manufacture Co., Ltd. (Wen County Coal Mining Machinery Central Plant) is located in Wen County, the hometown of Si Ma and the birthplace of Chen Style Tai Chi. We are a national grade medium sized enterprise, a national Class A monitoring enterprise, an outstanding enterprise for national standardization, and a fixed-point production facility for the original China Coal Mining Machinery Industrial ...