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I'm interested in understanding the specifications of the longest zippers you offer. Specifically, I'm looking for information on length options, materials used, and any unique features that might enhance durability or ease of use. If you have any samples or reference materials that showcase the longest zippers in your product line, I'd greatly appreciate it. Additionally, could you provide information on pricing, minimum order quantities, and lead times for these zippers? Knowing about available customization options would also be helpful. This information will assist me in making an informed decision for my upcoming projects. Looking forward to your detailed response!