... on China local market).Exchange rate at present is 1 usd = 6.35 yuan No.ItemCost of ... of coal0.4T×800RMB/T=320RMB3Water and electricity200×1.00RMB=200RMB4Workers4×100RMB=400RMB5Total Cost15,920RMB NO.ItemIncome1Crude ... ×45%×4,500RMB=20,250RMB2Carbon Black10T×35%×520RMB=1,820RMB3Steel Wire10T×13%×2200RMB=2,860RMB4Gross Profit24,930RMB5Daily ... ,252,500RMBVI. PRODUCT SHOW waste tires oil extraction machine