1, As a mould maker, we have made moulds for nearly 10 years, especially good at making Foundry/Casting mould, Rotational mould and Injection mould. Our roto-mould is made of Aluminum by sand-casting; Injection, Blow-molding, Extrusion and Fou , 1, As a mould maker, we have made moulds for nearly 10 years, especially good at making Foundry/Casting mould, Rotational mould and Injection mould. Our roto-mould is made of Aluminum by sand-casting; Injection, Blow-molding, Extrusion and Fou