1. Material: most of products can be made of  Iron , Brass ,Copper ,Zinc alloy ,Aluminium ,Stainlesss steel , Acrylic ,Plastic etc.
2. Process: Stamping , photo etching , print , Die casting
3. Logo style: laser, engrave, screen printing, offset printing.
4. Keychain type: metal keychain,PVC keychain,acrylic keychain,leather keychain,led keychain,couple keychain,  etc.
5.Plating finish:gold,antique gold,misty gold,silver,antique silver, misty silver,nickel,antique nickel,brass,antique brass,copper,antique copper,chrome,spray silver,black nickel,etc.