Are billet metals within the metal range?
Two kinds of billets, ferrous, ferrous and metallic, belong to ferrous metal, copper and copper alloy, aluminium and aluminium alloy, and belong to colored metal
Ah, metal materials, ferrous metals, color metals, two kinds of billets belong to ferrous metals, copper and copper alloys, aluminum and aluminum alloys, belonging to color metal
Two kinds of billets, ferrous, ferrous and metallic, belong to ferrous metal, copper and copper alloy, aluminium and aluminium alloy, and belong to colored metal
