First I need two sheets 500 x 500 mm by 10 mm. They will need 4 holes to take the meta columns. I haven't unscrewed them yet so i cannot guess the diameter. The corners should rounded to a radius of 38mm The edges polished to ensure no sharpness. And on course anealed.
So, tell me where I ca get that for a reasonable price. In fact any price. Because I couldn't find anywhere.
TIA