The sliding sleeve and set screw can make by carbon steel, ... quality and reasonable price.1) Hose screw sleeve,engine sleeve,sliding sleeve,straight thread sleeve,ferrule ect,2) Material:Zinc ally ... ,Penter,Aluminum,Stainless steel,Iron,Brass,Plastic ect.3) Color Pantne color chart.4) ... supply kinds of productions on base of your drawings. Sliding sleeve and set screw