... years experience Steel forging auto parts1,Name: Steel forging auto parts;Steel auto parts;Forging auto parts 2,For the similar auto parts,what can ... do ?1), Ability for the material of this kind of auto parts: Grade3.6,4.6,4.8,5.6,6 ... plated(while,colour,dacroment),Nickel plated,copper plated,gold plated,chrome(3+Rohs &6+ ) plated,anodic oxidation,etc Dip plating black ...