... is Malleable Iron.We have two stardand, U.S type and European type,the products have precise sized, better mechanical behavior ... be easily used. SpecificationsSand blasting nozzle holder Material:Aluminum,Nylon,Brass,Ductile lron Diameter: 1'' 1 /4''Sand blasting nozzle ... styles and materials. Standard coupling may be avaible in aluminum, brass nylon or plated iron, Full port blast hose coupling are ...