... of crude oil equipment itemscontentsRaw materialsWaste tires, scrap plastic, waste rubberMode ST-6t ST-8tST-12tSize of ... 860RMB4Gross Profit24,930RMB5Daily Net Profit24,930RMB-16,120RMB=8810RMB6Monthly Net Profit8,810RMB×25=220,250RMB7Yearly Net Profit220,250RMB× ... oilRaw oilWaste engine oil Waste plastic oilWaste rubber oilRaw oilWaste engine oilWaste plastic oilWaste rubber oilStructural formVertical ...