aluminum alloy ashtray 1.material:aluminum alloy 2.advantage:fine finishing 3.function:accessory tool for smoking aluminum alloy ashtray Description of process for ashtray: 1) Materials: brass, zinc alloy, stainless steel, iron, pewter, aluminum,crystal 2) Plating: gold, anti-gold, pearlized gold, silver, anti-silver, pearlized silver, nickel, anti-nickel, pearlized nickel, black nickel, anti- ...