南非采购需求：办公椅，办公桌，办公沙发，文件柜，学校家具，培训家具

I'm looking to source a variety of chairs for an upcoming project. Specifically, I'm interested in options that cover different styles such as modern, classic, and ergonomic designs. Please provide details on your available ranges, including materials, colors, and any customization options you offer. Additionally, I'd like to know about your pricing structure, minimum order quantities, and lead times for production and delivery. If you have a catalog or samples available, that would be great. Looking forward to your prompt response as we are eager to finalize our supplier decision soon.