SPECTROCHEMICAL STANDARDS FOR ANALYSIS OF ALUMINIUM AND ITS ALLOYS, AND SETTING UP SAMPLES. SPARES & CONSUMABLES FOR “LECO”, CARBON & SULPHUR DETERMINATOR, CARBON, SULPHUR, OXYGEN, NITROGEN AND HYDROGEN IN STEEL CALIBRATION STANDARDS, COAL AND COKE STANDARDS, GRAPHITE CRUCIBLES & ELECTRODES FOR SPECTROMETER.