Insulating water proofing membranes, namely, an insulating water proofing sheath; insulating materials, namely, insulating sheaths and membranes, not of metal; [ glass fibers for use in the manufacture of building insulation; ] electric, thermal and acoustic insulators; plastics in extruded form for use in further manufacture; sheets of plastic fabric used as an insulating infiltration barrier in building construction; plastic sheets for underground construction purposes, namely, covering and...