metal craft details:1) Material & peocess :Zinc alloy, brass,iron,copper (diecasting, stamping)2) Size: 20mm,25mm,30mm,35mm diameter etc (costom size is accepted)3) Thickness:1.5mm,2mm,2.5mm etc(up to customer’s request)4) Electric-plateing:gold,anti-gold,silver,anti-silver,nickel,anti-nickel,black ..