美国采购需求：铝包装、铝罐、定制铝罐、铝制容器、铝制容器、可回收铝包装

I'm interested in developing custom food-safe flour containers, akin to those used for protein powder. I'm looking for two sizes: one for 2 lbs and another for 5 lbs. Key features should include an airtight, resealable design, a large screw-top lid, and a lid that can serve as a measuring cup. Could you provide info on your customization options, minimum order quantities, tooling costs, and the sample process? I'm considering a starting quantity of around 500 to 1000 units and want to know if plastic is an option. Looking forward to your response!