... AC-FIX PUSH are made of brass for machining CuZn39Pb3 (CW614N) and brass for forging CuZn40Pb2 (CW617N).The fittings AC ... Multilayer pipes manufactured according to UNE-EN-ISO 21003 with the following nominal sizes and tolerances: Outside diameter mmWall ... 9 2,3520 20,0 20,32,25 2,05 2,6525 25,0 25,32,5 2,3 ... according to the norm UNE-EN1057 PLS-08044 Chrome-plated copper elbow with EN1254-2 certifiation