印度采购需求：台式砂轮机、钻床、线锯、台锯、带锯、吸尘器

I'm looking to source some 12-inch sanding discs with a 120 grit specification. It's crucial that these products are durable and designed for optimal performance across various applications. Please provide details on the material composition, expected lifespan, and whether they are suitable for both wood and metal surfaces. Additionally, I'd like to know your minimum order quantities, pricing per unit, and any available bulk purchase discounts. If you have different packaging options or if you can customize the grit level, please include that info as well. Looking forward to your prompt response with all the necessary details so we can move forward.