... connection 2. Standard parts. 3. Alloy Quick Coupling of Rubber Hose Application:Suit dry or wet shotcrete ... is the consumption components of Shotcrete machine.Quick Coupling,coupling lathe,coupling part Casting: investment casting ,precision casting, ... series.Process: cast, machining, turning, milling, drilling, thread cutting.Surface treatment: glass rays electrolytic polishing, coating, varnishing ...