Back side of nickel-jointed product - under development

Product Name	Back side of nickel-jointed product
Material	Pure nickel
Process	The back side of a sample made by joining three plates made of pure nickel with φ0.8 holes and grooves
Remarks	Outer Diameter : φ310mm Hole Diameter : φ0.8 Number of Holes : 525 Holes There are numerous small holes on the back. The three pieces are processed separately and then joined together.