印度采购需求：热敏打印机、热敏收据打印机、迷你热敏打印机、迷你热敏打印机、热敏打印机运输标签、热敏打印机耗材

I'm looking for thermal printer mechanisms in various sizes, specifically 2-inch, 3-inch, and 4-inch models. Key specifications include roller, battery options, and compatibility with chip cards. I need models that support different paper widths ranging from 40mm to 110mm with print speeds between 90mm/s and 300mm/s. Please provide me with product details, including model variations, and let me know if you have customizable options available. Thank you!