How deep is the depth of concrete slits?
Pavement concrete slits Specific depth: There are two kinds of sewn sewn and sewn.
This process, you have to first familiar with the concept of shrinkage and shrinkage.
With the template to stay in the seam is the expansion joints, cutting the seam is only shrinkage Yeah.
(The full name of the extension is called expansion joints, the function is to cover the extension, shrink effect), stretching through to the end, the depth of not less than 1/3.