... coal, cement, stones, sand, clay and ores. Because the pulling structure of the elevator adopts a toroidal chain, it is allowed ... have various of bucket elevator, such as D160S/Q , D250S/Q , GTD400, D450S/Q , GTD500, HL400S/Q , TH315ZH/SH , TH400ZH/SH , TH500ZH/SH , ZL350 ...