Semi-worked thermoplastic filaments for use in 3D printing; plastics and resins in extruded form for use in manufacture; artificial resins in extruded form for further manufacturing; thermoplastic compounds in pellet form for use in manufacture; semi-processed thermoplastic polymer resins for use in manufacture; extruded plastics in the form of sheets for use in manufacture; extruded plastics in the form of tubes for use in manufacture; extruded plastics in the form of blocks for use in manuf...