The more dedicated the Bekekai, the more dedicated
material of the material:
Metal in metal
Color classification of the color:
03-06 03-06 Old Kai Yue-Strengthening the Manganese Steel 03-06 Old Kai Yue-Strengthening the Stiffened Titanium Alloy 07-12 Kai Yue-Strengthening the Manganese Steel 07-12 Kai Yue Kai-Strengthening Stiffened Titanium Alloy