The regulations and specifications of self drilling hollow bar

The regulations and specifications of self drilling hollow bar

In order to make sure the techology of the production of self driiling hollow bar and the quality test of hollow bar keep in a good place,to provide advanced,safe,economical,reliable,reasonable and practical solutions for the installation of self drilling hollow bar.

The zero-damage quality test of hollow bar should be organized according to the test conditions,applications and installation technology and so on.

During the installation of self drilling hollow bar,current safety and labor protection rules should be abided.

As the hollow bar is often installed in some poor and complicated ground conditions,such as broken layer,slope,and other rock mass with high risk for installation.As a result,the technology and quality test of hollow bar play significantly important role in jobsite.

The regulations say that the basic technology requirements of the quality test of self drilling hollow bar should be in accordance with national law and administration statute.

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