Stair treads buying

We are looking for following products:

- panels 3000 x 995 mm or 6000 x 995 mm, pressed and press-welded, without frame , without galvanizatin, bearing bar 30 x 2 mm, 33x33 or 34x38 mm or similar,
- panels 3000 x 995 mm or 6000 x 995 mm, pressed and press-welded, without frame , without galvanizatin, bearing bar 30 x 3 mm, 33x33 or 34x38 mm or similar,
- fixing clamps galvanized.
- stair treads in diverse dimension.
- etc.