Quality control process

Our professional quality control team conducts strict inspections and tests at every stage of production to ensure that our products meet national and industry standards.

Material Inspection

Before the production of doors and windows, we inspect the aluminum alloy materials, including appearance, size, hardness, etc. If the material does not meet the requirements, it will be returned or replaced.

Type Material Inspection

During the production process of doors and windows, we inspect the materials to ensure that the size and specifications of the materials meet the design requirements. At the same time, we also inspect whether there are scratches and oxidation on the surface of the materials.

Processing Inspection

During the production process of doors and windows, we conduct processing inspections on various parts of doors and windows to ensure that the size and shape meet the design requirements.

Mass Production Functional Test

Carry out functional debugging on doors and windows to ensure that there is no problem with the product, then pack and deliver.