Patent Rights Charng Chyi holding spirit of invention and creation has acquired patent rights as follows: Utility Model Patents No. M303361 Metal furnace construction’s improvement Utility Model Patents No. M285689 Clean aluminum melt device Utility Model Patents No. M285689 Improvement of aluminum alloy melt furnace construction Design Patents No. 160821 The flux for steelmaking Utility Model Patents No. 123057 Continued aluminum casting machine. Utility Model Patents No. M320921 Classification of different metal system
