伊朗采购需求：7440-19-9，购买金属钐，CAS 7440-19-9，高纯度金属钐，金属钐价格，稀土金属

I'm looking to establish a long-term supply relationship for a product that I need regularly. Specifically, I'm interested in sourcing around 5 to 10 metric tons every month. It's essential that the product quality is consistent, and I would like to understand your capacity to meet these requirements on a continuous basis. Additionally, I would appreciate if you could provide information on your pricing structure, lead times, and any bulk purchase discounts that may be available. Understanding your shipping options and payment terms would also be very helpful. Looking forward to your detailed response so we can discuss this potential partnership further.