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I'm interested in acquiring a three-wheeler electric tricycle, specifically designed for heavy-duty cargo transport. My primary requirement is a model that offers a larger cargo area and has the capacity to handle loads of at least 500kg or more. This will enable me to meet my logistics needs effectively. Could you please send me your latest catalog that features such models? I'm particularly keen on options that combine efficiency with durability. Additionally, details regarding pricing, specifications, and available configurations would be greatly appreciated. Thank you!