Machines for preparing the ends of plastic pipes and tubes, machines for stacking plastic pipes and tubes, [ machines for boring or drilling plastic pipes and tubes, ] machines for automatic cutting of plastic pipes and tubes into sections, [ machines for threading the ends of plastic pipes and tubes, machines for bending plastic pipes and tubes, machines for drawing extruded components of plastic at controlled speeds, ] machines for the application of waterproof packing onto plastic pipes and tubes, reels, mechanical, and machines for winding reels of plastic tubes, machines for automatic marking of plastic pipes and tubes

[ Electromechanical instruments for measuring the length of plastic pipes and tubes ]