Attention: Non-standard products, custom-made products, and products with damaged packaging that affect secondary sales are not allowed to be exchanged or returned in our store!!!! ? ?The company specializes in the production of various types of zippers, including nylon zippers, resin zippers, metal zippers (aluminum, imitation copper, genuine copper), invisible zippers, waterproof zippers, etc. We have 330 different specifications of zippers, and we can also make custom zippers in bundles, such as guides, tail, closed tail, front and back codes, double rear codes and so on. The added process, black and white generally have stock supply. In order to save your search and consultation time, the following combines the characteristics of our factory's products to sort out some common questions. Please understand in advance: Question: What are the materials of zippers? Answer: Common materials of zippers: Nylon? Resin? Metal Nylon zippers: Nylon zippers are divided into 3, 5, 8, and 10, and the quality can be determined according to the thickness of the edge, generally referred to as weight, divided into A band, B band and C band, A band is the best, and C band is the worst. Invisible zippers are only 3, with distributed edges and lace edges, and the pull heads are equipped with drip heads, and the shortest can only be made with a net length of 10cm; Waterproof zippers are 35, 8, and 10 are ordinary nylon zippers with a waterproof layer. They come in matte and glossy finishes, and customers can choose based on their different requirements. They are equipped with reverse-pull zippers. PVC zippers are usually used in makeup bags and are only for packaging. Resin zippers come in sizes 3, 5, 8, 10, 20, and 30. They are divided into hard and soft materials. Hard material has good quality and is relatively expensive, making it less likely to wear out. Soft material has lower quality and is relatively cheaper, making it more likely to wear out and leave teeth marks when bitten. Metal zippers come in sizes 3, 4, 5, and 8. The materials are divided into copper and aluminum (fake copper). You can tell them apart by weighing them. Aluminum is lighter, while copper is heavier. Question: How are the specifications differentiated? Common specifications: 3 (tooth width 4mm), 5 (tooth width 6.5mm), 8 (tooth width 7mm), and 10 (tooth width 10mm).What are the common styles you have? The styles include: inverted zipper, closed tail, open tail, and guide zipper. The guide zipper is made by cutting a length from the code according to the customer's requirements and then inserting a pull tab. All guide zippers are handmade, and both nylon and resin can be made. The closed tail zipper is usually used in wallets and pants, and can be made to any length at the customer's request. Both ends are marked with a code and a pull tab is inserted in the middle. There is also a double closed tail zipper, which has two pull tabs marked and can be pulled from both ends. The open tail zipper is usually used on outerwear, with a clip. There are metal and plastic clips, and the plastic clip is often called injection molded open tail. Both nylon and resin can be made. There is also a double open tail zipper, which has two pull tabs and is usually used on down jackets. Please feel free to call or email for more information and to place an order. The prices on the internet are for reference only and may change according to market conditions. Thank you for your understanding!Please input the correct password, otherwise the order is invalid. Thank you for your cooperation!