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The process in order to give a woolly appearance, of vegetable fibers of all kinds, wood fibres, cellulose, artificial and bristles viscose fibres and their waste, in the state of carded, and to make them suitable for the spinning and the felting
The process in order to give a woolly appearance, of vegetable fibers of all kinds, wood fibres, cellulose, artificial and bristles viscose fibres and their waste, in the state of carded, and to make them suitable for the spinning and the felting