Hex key wrench (CR-V), allen key 1 Stainless steel wrench 2 Quick delivery 3 Various materials 1. We supply the hardware fittings and machine components in compliance with customized designs by materials of stainless steel, mild steel, aluminum, copper, brass, bronze, etc.Surface treatment: zinc/nickel/chrome plating, hot galvanized, painting, PVC powder coating, etc or according to your drawings ...