拉脱维亚采购需求：再生聚乙烯邮袋、自封袋、购物袋、牛皮纸袋、蜂窝纸包装、软垫信封

I'm reaching out to get some clarification regarding the pricing for the product I'm interested in. Could you please let me know if the price is quoted per kilogram or per piece? Understanding this will help me make an informed decision. Additionally, if there are any bulk purchase discounts or pricing tiers based on quantity, I'd love to know more about that as well. Looking forward to your prompt response so we can discuss potential volumes and further details!