4
SEALANT PASTE TO ASSIST IN PLASTIC TUBE COUPLING
6
COMMON METALS AND THEIR ALLOYS; METAL MATERIALS FOR RAILWAYS; CABLES AND RELATED NON-ELECTRICAL METALLICS; METAL WORK AND METALLIC HARDWARE; METALLIC TUBES; SAFES; METALLIC PRODUCTS; ORES APPLIANCES FOR LIGHTING, HEATING, VAPORIZATION, COOKING, REFRIDGERATION, DRYING, VENTILATION, DISTRIBUTING WATER AND FOR
11
CENTRAL MULTIPORT UNIT FOR RECEIVING PLASTIC TUBES FROM DOMESTIC PLUMBING APPLIANCES
17
RUBBERS, GUTTA-PERCHA, GUM, ASBESTOS, MICA AND PRODUCTS IN THESE MATERIALS NOT COMPRISED IN THE OTHER CLASSES; PRODUCTS AND DOUBLE WROUGHT PLASTIC MATERIALS; AIRTIGHT MATERIALS FROM CAULKING TO INSULATION; NON-METALLIC FLEXIBLE TUBING, NOTABLY WHOLE SYSTEM PLUMBING SUCH AS A CENTRALIZED DISTRIBUTION UTILIZING THE PRINCIPLE OF INSTANTANEOUS LINKING