We, Hasten Zone Co. Ltd, are engaged in zippers trade and production for five years, especially for waterproof / airproof zipper, which is the first manufacturer in China. The produced sealed zippers are used for military industry, water walking ball, diving suits, lifejackets, firefighting suits, etc. To ensure the products quality, we have advanced production equipments, high-educated technician and quality system. For more details, pls kindly contact us. We can provide samples for quality evaluation and accept small trial order for our business cooperation.