... connection 2. Standard parts. 3. Alloy Quick Coupling of Rubber Hose Application:Suit dry or wet shotcrete machineor other machine's ... : small, medium and large series.Process: cast, machining, turning, milling, drilling, thread cutting.Surface treatment: glass rays electrolytic polishing, coating, varnishing ... ISO 9001 2001Features:ReliableSuper-qualityLong-duration Quick Coupling of Rubber Hose