... , ALSI12FE, A390, ADC14, etc Brass Alloy Tinbronze, Germansilver, White copper, Red copper, Brass, Bronze, Copper, etc Steel Alloy L1214,L1215,45C, A3, Q235, Q345 ... , Silver plating, Gold plating, Bright Zinc Plated, Plating of Silver, Copper, Zinc, Nickel, Glod, Passivate etc. Polishing Burnishing, Sand casting, Polishing ...