We carry out comprehensive performance tests on the eight-sided sealing bags to ensure that they can meet the various needs of our customers. Our tests include waterproof and moisture-proof tests to verify the moisture-proof properties of the eight-sided sealing bags; Repeat zipper test to verify durability and stability of zipper; Non-cracking performance test to ensure that the eight-sided sealing bag will not crack or burst during use. We also pay attention to testing the sealing performance and appearance quality of each batch of products to ensure that the quality of products meets the requirements of customers. Our team has many years of experience and expertise, and is committed to providing customers with high quality and reliable eight-sided sealing bag products. Please contact us for more details.