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I'm interested in purchasing DC fans for our upcoming projects and would appreciate any details you can provide. Specifically, I'm looking for information on available models, their specifications, and pricing options. If you could also share details about your lead times and any minimum order quantities, that would be great. Additionally, please let me know about your payment terms and shipping options. I'm keen to understand the quality assurance processes you have in place and whether there are any certifications for your products. Looking forward to your prompt response so we can move forward quickly!