PLASTICS IN THE FORM OF SHEETS, RODS, TUBES, BARS, AND SPHERES FOR GENERAL INDUSTRIAL MANUFACTURING USE; SEMI-FINISHED PLASTIC AND RUBBER IN THE FORM OF MOLDINGS, EXTRUSIONS, MACHININGS, AND CUTTINGS FOR USE IN THE MANUFACTURE OF A WIDE VARIETY OF FINISHED PRODUCTS; SEALS, GASKETS, PACKINGS, INSULATION, PIPE FITTINGS ALL PRIMARILY OF PLASTIC AND/OR RUBBER FOR INDUSTRIAL USE IN CORROSIVE ENVIRONMENTS; PLASTIC PIPE SLIDES TO ACCOMMODATE PIPE EXPANSION; [ PLASTIC SLIDE BEARINGS TO ACCOMMODATE THERMAL AND MECHANICAL EXPANSION AND CONTRACTION AND SEISMIC MOTION OF [ HEAVYSTRUCTURES ] * HEAVY STRUCTURES * ; [ NAMELY, BRIDGES, BUILDINGS, AND SIMILAR STRUCTURES; ] PLASTIC TUBING, HOSES, FITTINGS FOR A WIDE VARIETY OF COMMERCIAL AND INDUSTRIAL USES; TAPES; NAMELY, PLASTIC AND/OR RUBBER-COATED TAPES WITH HIGH CHEMICAL AND HEAT RESISTANCE FOR INDUSTRIAL AND COMMERCIAL [ USEAND ] * USE AND * PLASTIC AND/OR RUBBER-IMPREGNATED FABRIC TAPES FOR USE IN CORROSIVE AND [ HIGHTEMPERATURE ] * HIGH TEMPERATURE * ENVIRONMENTS; PLASTIC [ AND/ORRUBBER ] * AND/OR RUBBER * -IMPREGNATED FABRICS IN THE FORM OF SHEETS FOR USE IN THE MANUFACTURE OF GASKETS, DIELECTRIC BARRIERS, BELTS, APRONS, CLOTHING, WORK SURFACE COVERINGS, AND RELEASE SHEETS FOR USE IN THE FABRICATION OF RESIN STRUCTURES; PLASTIC FILMS FOR VARIOUS USES; NAMELY, ELECTRICAL AND ELECTRONIC INSULATION, WIRE AND CABLE TAPE, FORMED COIL INSULATION, SUBSTRATES FOR FLEXIBLE PRINTED CIRCUITS, MOTOR SLOT LINERS WHICH PROVIDE ELECTRICAL INSULATION, MAGNET WIRE INSULATION, TRANSFORMER AND CAPACITOR INSULATION, AND BONDING MEDIA FOR OTHER SUBSTRATES