亚美尼亚采购需求：茶叶包装机，茶包机，茶包包装机，茶包制作机，茶包包装机，茶包包装机

I'm looking to purchase a commercial electric stone mill specifically designed for grinding tencha leaves into high-quality ceremonial grade matcha. The key requirement is that the mill must have a granite construction to ensure a fine and consistent grind. Could you provide me with details on the models available, including their specifications, capacity, and pricing? Additionally, any information on the grinding process and maintenance would be greatly appreciated. Thank you!