Dear Sir/Madam, This is ArjenHans from NL. I'm looking for products with the following specifications: 13mm plunger p3000 or p7100 it doesn't matter. can you make it with DLC coating? or without? i have an picture for you how it must be like that. i dont' have an number of the plunger and barrel. and dont ask me about that! but it is a special made plunger and barrel for tractorpulling. it is custum made. let me know about ! Show More