南非采购需求：注塑成型、铣削加工、数控设计、数控铣削加工、铸造模具、数控铣床

I'm interested in sourcing 1000 tons of silicon metal, particularly suitable for aluminum and silver applications. I'd appreciate if you could provide detailed specifications on the grades available, as well as any certifications you have. Also, please share your pricing structure and the lead times for delivery. Additionally, it would be helpful to know about your production capacity and any minimum order requirements. If there are options for bulk ordering discounts or contract terms, I'd like to hear about those as well. Looking forward to your prompt response so we can potentially move forward with this procurement.