Just because the oil chart mentions fuel and paint it doesn't mean the paint has to be like the fuel. They're just two different products that can be made by treating the oil in different processes. Same goes for fibre, the textiles don't have to be like the canvas or the other way around. So in short: The canvas, carpets and twine simply aren't the clothing material. They're three other, different materials that can be made from hemp fibres according to the chart.