南非采购需求：自立袋、平底袋、牛皮纸袋、卷膜、包装膜、咖啡包装

I'm looking to source specific items and would appreciate your guidance on where I can purchase them. It would be helpful to know if you have recommended suppliers or platforms that offer these products. Additionally, if you have any pricing details or potential bulk order discounts, please let me know. I'm eager to streamline my purchasing process and would love to collaborate with reliable sources. Thanks for your assistance!