... 20 years experience 1,Name:Alloy steel finger for auger header assembly ,Alloy steel finger,Auger header assembly finger2,For the similar ... do ?(1), Ability for the material of this kind of finger: Grade3.6,4.6,4.8,5.6,6.8 ... oxide coating,hot dip galvanizing,etc Flame plating Light oil,spray coating,electrophoretic coating,etc Polishing Grinding and polishing,etc,except ...