Product Description
Product Detailed
Bedroom Furniture
General Use
Home Furniture
Certifications
Our Company
Factory
Workshop
Our Workshop
Warehouse
Our Warehouse
Sample display room
Sample display room
testing laboratory
Sangu testing laboratory complies with national standards for airtightness, water-tightness, and wind resistance tests. Regular sampling tests are used to check the quality of aluminum doors and windows, and to continuously improve the disadvantage and develop new products.In order to ensure the accuracy of the equipment, not only the annual calibration, the quality control personnel must also undergo professional training and obtain relevant certifications. Professionals use a variety of equipment to check the quality
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