... We are professional in high quality window and door extrusion mould, die, tooling, molding2: Flow channel systematic design ... , formula process and extrusion mould.6. Material of the mould: special and superior stainless steel. Mould material is 3Cr17 Mo ... material to make mould 7. According to your request, mould can be post-co extrusion, color co extrusion, embossing co extrusion, surface layer and ...