Aluminum alloy material before entering the support structure, the material should be provided by the certificate Zhuoliang product, and other technical information Test report
Before the material of the support structure of aluminum alloy enters the market, Zhuo Liang should provide the technical information such as the certificate of product material, product testreport and so on.
Before the materials of aluminum alloy supporting structure enter the site, Zhuoliang shall provide the product material certificate, product test report and other technical data