fluoropolymer plastic fitting for the attachment to plastic tubing and pipe for use in laboratories and industrial installations requiring chemical resistance to and purity of conveyed liquids; pipe couplings and joints, not of metal; pipe connectors, not of metal; non-metal elbows for pipes; junctions for pipes, not of metal; junctions for rigid pipes, not of metal; junctions for flexible pipes, not of metal; pipe fittings, not of metal; fittings, not of metal, for flexible pipes; fittings, ...