... As follows: Sandblast Coupling ( Hose Couplings, Female Thread, Nozzle Holders, etc. ) Sandblasting fittings: Blast hose/air hose coupling: Nylon, brass, aluminium ... , cast steel We also supply: Camlock and groove quick couplings (Brass, Aluminum, SS316, SS304, PP and Nylon) ... coupling (Dutile iron, Aluminium, Brass, Nylon) Steam hose coupling (Ground joint clamp) Universal air coupling (American ...