Rona, Univesithi ea Henan Yulin.Engineering Company Limited.Ke feme e nang le nalane ea lilemo tse fetang 60, morero oa Co., Ltd. o thehiloe ka 1958, motse-moholo o ngolisitsoeng oa li-yuan tse limilione tse 120, basebetsi ba teng ba litsebi ba fetang batho ba 200.Hona joale e se e holile ho ba morekisi ea tsebahalang oa lisebelisoa tsa thuto e kopanyang lipatlisiso tsa mahlale, tlhahiso le thekiso.