We are a large-scale manufacturer with 26 years of experience in the building materials industry. Our commitment is to provide the best service to our customers, which is why we adhere to strict quality testing standards. Our team includes professional quality inspectors and we use advanced inspection instruments to detect zinc layer thickness and specifications. Dimensions：we meticulously measure each piece of exported goods with a micrometer to ensure there is no deviation in size. Our inspection process includes both manual and machine inspections. Using vernier calipers to measure the specifications of each item to meet customer requirements. We monitor the quality of our products from raw materials to ensure customer safety. For zinc coating：all galvanized products undergo corrosion resistance testing and zinc testing to ensure their service life. We also conduct tensile strength tests, yield strength tests, and more. Only products that meet our standards are shipped.