... many years. Please find our standard products As follows: Sandblast Coupling ( Hose Couplings, Female Thread, Nozzle Holders, etc. ) ... Sandblasting fittings: Blast hose/air hose coupling: Nylon, brass, aluminium, cast steel Sand blast Nozzle hoders ... Brass, Aluminum, SS316, SS304, PP and Nylon) Guillemin coupling Aluminum and Stainless steel Safety clamps (conform to DIN2817), ...