All Kibblewhite Precision Machining, Inc. stainless steel valves are impregnated by a special German process with a .002" deep & .0002" surface build-up to improve wear properties and reduce frictionThis process provides resistance to corrosion and wear superior to that developed by hard chromium and electroless nickel platingThese stellate-tipped valves are light and the profiles provide excellent flow characteristicsAll Kibblewhite Precision Machining, Inc. stainless steel valves are impregnated by a special German process with a .002" deep & .0002" surface build-up to improve wear properties and reduce friction This process provides resistance to corrosion and wear superior to that developed by hard chromium and electroless nickel plating These stellate-tipped valves are light and the profiles provide excellent flow characteristics