... steel wire out. Then u can start the next batch. 2.The usage of final production -----FUEL OIL fuel oil from ... %*4,500rmb=20,250RMB2carbon black10T*35%*520RMB=1,820RMB3steel wire10T*13%*2200RMB=2,860RMB4Gross profit24,930RMB5Daily Net Profit24,930RMB-15,920RMB=9 ... Net Profit9,010RMB×25=225,250RMB7Yearly Net Profit225,250RMB×10=2,252,500RMB 10 tons used tyre retreading machine with CE certificate