Metallurgical ContentLaboratory Jig (Harz Type)Small Laboratory Jig CapacitySmall Laboratory Jig, (Selective) Mineral Small Plant Jig CapacitySmall Laboratory Jig, (Selective) Mineral 4″ x 6″Small Plant Jig Capacity Laboratory Jig (Harz Type) There are many ores, such as zinc, lead, iron, and fluorspar which can be treated economically in jigs handling very coarse feeds; either to make a ...