250mm diameter tube x 4mm thickness wall x cut to sze, flame polished edges, perfect job we needhas to be perfect machined to 80mm ( 0.3mm tolerance) as it is used as a component with exact dimensions. 1 x 12mm hole central placed,,,when you give me a good price estimate i will order a few samples,drill one and send it to you so you know what to do sanded smooth and flame polished edges,imperfection freewe need your best price ...i get many last year so i have anvery good idea of price .Price Range: 1.50~3.50 USDCountry:Australia