Inspection of the work that looks at the need to have an on-off before work to make labels clearer indicator pointer. To prevent problems that can occur in the same manner with Zinc.
Check that look to have open - before walking off the job. To make a clear identification labels. To prevent problems that may occur in a manner similar to Zinc.
Investigating the characteristics that must be open and closed before the walk. To develop the signs indicate clearly. To prevent problems that may occur in the same manner, Zinc