美国采购需求：201不锈钢管、3不锈钢管、303不锈钢扁钢、304不锈钢角钢、304不锈钢连续油管、304不锈钢扁钢

I'm looking for a high-quality stainless steel material with specific dimensions for my upcoming project. The preferred grade is 316L or a similar grade with comparable properties. The sheet should have a width of 21 inches and a thickness of 0.020 inches. Please let me know if you have this available and any relevant specifications. Additionally, it would be great to receive information on pricing, lead times, and any minimum order requirements. If you have any recommendations or alternative materials that meet these criteria, I'd love to hear about them. Looking forward to your prompt response so we can proceed further.