Import bright paint, three times wear resistance than the ordinary imported ink printing, dlear scale, high carbon steel, Vickers hardness 490-510, not easily deformed.
The wheel and the case are all made of new ABS.
Quenching hooks are not easly delormed to ensure accuracy Surface chrome plating Antirust and corrosion.
65 Mn steel Spring Strong and powerful Three times lfe time than ordinary materials.