印度采购需求：粉末加工、钣金、金属零件、钣金加工、金属加工、硅锰合金

I am looking to procure 100 kg of selenium with a purity level of 5N grade. Could you please provide me with your pricing details, including any bulk discounts or additional fees? Additionally, I would appreciate information on the lead time for shipment and the available payment terms. It's essential for us to ensure quality and timely delivery, so any specifics on your quality assurance processes would also be helpful. Looking forward to your prompt response!