38-650B PCA Metalair Bulk Powder Wagon 'Blue Circle Cement' Grey No.11026 - WeatheredExpected Delivery Aug Sep 2026 (Subject to Change at Manufacturer's Discretion). Rail has long been the favoured mode of transport for moving bulk goods and cement is just one commodity for which specialised wagons have been developed to facilitate this. In the mid Twentieth century British Railways introduced the Presflo wagons to carry powdered cement, which had previously been conveyed in goods vans in bagged form, and as time moved on new designs