Aggregate 6H Drainage material help.?

Try Tarmac a href="http://www.tarmac.co.uk/" rel="nofollow"http://www.tarmac.co.uk//a may be able to help you. I would suggest that if possible you check that you have the correct reference for the material and if possible obtain a reference sample from the Highways agency. Tarmace have several quarries around Birmingham and the Midlands and produce a wide range of materials so are likely to either supply it or know where you can get it.