Inquiry (采购产品): What kind of tool steel can be plated What kind of tool steel(A-2, D-2, 4140) can be Nickel- Phosphorus plated? Also at what Hardness? **** Hidden Message ***** Mark Schulze St. Henry, OH 45883 USA Company: Excel Machine & Tool E-mail: maschulz@tubebenders.com **** Hidden Message ***** maschulz@tubebenders.com