UNLC

laboratory equipment specially adapted for use with chromatographic apparatus for laboratory use, namely, nuts, ferrules, fittings being tubing connectors, tubing, and zero dead volume fittings being tubing connectors

fittings and accessories specially adapted for use with chromatography apparatus for industrial purposes, namely, nuts, ferrules, fittings being tubing connectors, tubing, and zero dead volume fittings being tubing connectors