Concrete Slab for Iron Shed

I need an engineered concrete slab for an iron storage shed.

Specifications:
- Dimensions: 6000mm x 6000mm x 100mm thick
- Reinforcement: SL72 mesh
- Concrete mix: 25 MPa
- Finish: Smooth

Requirements:
- Tie the slab into a concrete block retaining wall on two sides.
- Experience in laying reinforced concrete slabs is ideal.
- Must ensure proper curing and finishing for a smooth surface.

Please provide relevant experience in your bids.