1、Declaration
Need to prepare company related materials,Whether the business license has fire door project, fire acceptance report, environmental protection of the law, safety production law proof, fire door products commissioned inspection report and so on.
2、Examine and approve
The evaluation center of the relevant department will conduct the preliminary evaluation. After passing the preliminary evaluation, the relevant department will conduct the preliminary evaluation.
3、Factory audit
The relevant departments send people to the enterprise to carry out strict examination of each link, which is also a link to test the real strength of the enterprise.
4、Product testing
Metal fire door or fireproof wood door to the designated testing center for testing.
We are Dalian Golden House Door & Window Mag Co. .Ltd.mainly produce steel common doors, steel fire doors, wood common doors, wood fire doors, steel doors, aluminum and wood composite Windows and so on. If you want to know more about our products, please contact us.







