What kinds of casting materials do you have?
There are many kinds of casting materials: modeling (bentonite, coal powder, binder, disintegrating agent, resin coated sand, etc.), charge type (deslagging agent, carbon agent, inoculant, deoxidizer, ferrosilicon and other iron scrap bread, etc.). Many kinds! I don't know what you think!
More commonly used aluminum alloy, copper alloy, zinc alloy and so on, and these 3 are also used more, you can refer to
