What should we do before the surfaces installation?

1. Review of construction drawings

Organize technical personnel to conduct joint review of construction drawings.

Check the relevant dimensions of the site control points according to the drawings.

And draw the completed foundation plan.

2. Determine the flatness of the site foundation

Foundation construction standard:

Flatness is 2 meters by the ruler not more than ± 3mm,

Determine the flatness of the site foundation according to the above standards.