... and labor 1.working process: Firstly, make reactor rotate clockwise 0.4r/min, put raw material into reactor, close feeding ... 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