... ORBINOX ,and have been recognized as a reliable supplier for many international buyer.Main information about Aluminum die casting ... alloy. 2) Surface Treatment: chrome plating, sandblasting, painting , anodizing, powder coating, electrophoresis. 3) Suitable for various industries: auto, machine, valve, pneumatic , etc ... . Aluminum die casting handwheel of TK model knife gate/valve fittings/parts