南非采购需求：自动售货机弹簧

I'm looking to source 30 vending machine dispensing coils and would appreciate it if you could provide a detailed quotation. It would be great if you could include information on pricing, lead times, and any bulk purchase discounts available. Also, could you share the technical specifications of the coils, including materials used and compatibility with various vending machines? Understanding shipping options and costs would be helpful too. Looking forward to hearing back soon!