,supply, assembly and balance of tyres and tyres for 24 months lots: lot No1: supply, assembly and balance of tyres and tyres for light and heavy duty vehicles for 24 months lot No2: supply, assembly and balance of tyres and tyres for heavy duty vehicles for 24 months lot No3: supply, assembly and balance of tyres and tyres for agricultural machinery (tractors and other agricultural and forestry machinery for 24 months)