Copper, Aluminum Washers and their sets: Metric, Inch and R type washers made of various metals and synthetic materials that meet international standards.More than 200 different sizes of standard washers, that kept in the inventory.Special type, heavy-duty, multi purpose washers, used in hydraulic and pneumatic connections.Shims of piston liners for ship building industry Aluminum and copper washer sets that consist of commonly used 30 different sizes in Withworth and metric contain 500 and 1000 pieces.Technical washers made of aluminum, vulcanized fiber and so many materials in special dimensions.