... 1. Almost 20 years experience on aluminum extrusion profile, aluminum enclosure profile, aluminum heat sink, sheet metal parts, punching ... silkscreen painting or as customer's requirement. 5. Material: aluminum, copper, SPCC, SGCC, Stainless steel, Iron, etc. 6 ... aluminium alloy section, High precision parts.Extrusion die mouldAluminium extrusion die mould, porthole die, Anodised aluminum housing