AZ31B, 31D, AZ63, AZ80A, AZ91D, M50 and other magnesium alloys are cast by the most advanced semi continuous casting machine at present. Specifications can be done in diameter 400mm; 60mm&mdash, length 6 m. Continuous casting, the mixed gas protection and other advanced production technology makes the product strength high dense section no shrinkage, no solvent corrosion, no oxide inclusion, smooth surface, chemical composition without segregation of slab