Semi-processed resins; semi-processed natural resins; resins in extruded form for general industrial use; plastic fibres, other than for textile use, impregnated with synthetic resins for use in manufacture; semi-finished products, namely, semi-processed thermoplastic resins reinforced with natural fibers; semi-processed thermoplastic elastomer resins in pellet form for use in manufacture; semi-processed acrylic resins; semi processed polymer resins; semi-processed synthetic resins; semi-proc...