TRIS

machine parts;, namely, carbon brushes, blades, bearings, bushes, mechanical seals, [ valve seats, ] gears [, cams, pulleys, cores, shells, sintered friction for brake discs, sintered metallic filters, rotary vanes for rotary pumps, rotary vanes for vacuum pumps, rotary vanes for flow meters ]

resistors [, electrodes for electro-discharge machinings, contact points, contact shoes, jigs, and crucibles for melting metals and non-ferrous metals in the nature of gas analysis crucibles, zone refining boats and crucibles, and uranium melting crucibles ]

[packing materials for forming seals]