ELECTRIC WELDING MACHINES FOR WELDING PLASTIC TUBING AND FITTINGS; AND PNEUMATIC PLASTIC VALVES

ARTICLES USED IN LABORATORIES, IN THE PHARMACEUTICAL, BIOTECHNOLOGY, FOOD, AND CHEMICAL PROCESSING INDUSTRIES, AND IN INDUSTRIAL MANUFACTURING PLANTS, NAMELY, CARRIERS FOR SEMICONDUCTOR WAFERS AND SUBSTRATES AND HANDLES THEREFOR, STORAGE BOXES AND COVERS FOR SEMICONDUCTOR WAFERS AND SUBSTRATES, SHIPPING CONTAINER AND HANDLING TRAYS FOR SEMICONDUCTOR WAFERS, SUBSTRATES, AND PHOTOPLATES; TRAYS FOR HOLDING ELECTRONIC COMPONENTS; SEMICONDUCTOR WAFER, CHIP AND PHOTOPLATE IDENTIFYING MATERIALS NAMELY CLIP-ON IDENTIFICATION TAGS FOR TRAYS, CARRIER HOLDING TRAYS, PHOTOPLATE CARRIERS, ADJUSTABLE CARRIERS, CARRIERS FOR MAGNETIC STORAGE DISKS, STORAGE BOXES AND COVERS AND SHIPPING CONTAINERS FOR MAGNETIC STORAGE DISKS; LABORATORY EQUIPMENT NAMELY, GRADUATED MEASURING CONTAINERS, BEAKERS, LIQUID STORING PANS, VACUUM PROBES, GAUGE PROTECTORS AND SOLENOID VALVES; CHEMICAL RESISTANT SENSORS, PROBES AND CONNECTING CABLES; FLUID DETECTORS TO DETECT THE PRESENCE OR ABSENCE OF FLUIDS IN PROCESSING ENVIRONMENTS

PLASTIC TUBES AND PIPES; PLASTIC CONNECTORS AND FITTINGS FOR TUBES AND PIPES NAMELY, UNIONS, REDUCERS, MALE CONNECTORS, TEES, ELBOWS, PANEL MOUNTS, CAPS, PLUGS, NIPPLES, FERRULE NUTS AND PLUGS, BARB FITTINGS, AND TUBE TO PIPE ADAPTERS, AND TUBE TO BARREL CONNECTORS, ALL FOR GENERAL INDUSTRIAL USE

PLASTIC SPRAY NOZZLES AND PLASTIC FASTENERS NAMELY, SCREWS, NUTS, AND BOLTS; AND MANUALLY OPERATED PLASTIC VALVES, PLASTIC BARRELS FOR STORING AND DISPENSING CHEMICALS, FITTED PLASTIC LINERS FOR BARRELS FOR STORING AND DISPENSING CHEMICALS, AND PLASTIC SPRING OPERATED CHECK VALVES; AND EQUIPMENT, NAMELY, WASHERS AND DRIERS FOR SEMICONDUCTOR AND MAGNETIC DISK CARRIERS, BOXES, AND SHIPPING CONTAINERS