青云翻译

The first layer of primer should be carried out immediately after blasting, the longest not more than 4 hours;

First layer of primer should be carried out immediately after the blast, most no more than 4 hours;

The first primer should carry on immediately after sand blasting processing, longest cannot surpass for 4 hours;

The first primer: sandblasting should be carried out immediately after the longest, not more than 4 hours;

First layer of primer should be carried out immediately after the blast, most no more than 4 hours;