bids are invited for for medal and engraving department mse aluminium pipe 63 mm , transair equal connector 63mm , transair equal elbow 63mm , transair equal tee 63mm , lockable double ball valve 63 , transair reducing bracket 63 25mm , aluminium pipe 25 mm , transair equal elbow 25mm , lockable double ball valve 25 , male stud fit g 25x1 inch bspt , threaded wall bracket for 25mm , ball valve dn10 femal , transair fixing clip for 63mm aluminium , transair fixing clip 25mm , equal tee 25mm , plug-in reducer 63 40mm , aluminium pipe 40mm , male stud fit g 40x1 inch bspt , equal connector 40mm , equal elbow 40mm , vented end cap 40mm , lockable double ball valve 40 , reducing bracket 40 1 6 5mm , threaded wall bracket for 17mm , lockable double ball valve 16 5 , tube alu blue 16 5 x 1 2 63mm long , fixing clip for 40mm aluminium tube , fixing clip 16 5mm , equal connector 16 5mm , mini bracket d40 1by2 inch bsp female thread , plug in reducer 25 17mm , equal elbow 16 5mm , 1 inch filter automatic drain , hose 1 inch , angle structure support , installation of aluminium pipeline system procurement of aluminium pipe for compressed air system total quantity : 677