We are a candidate vendor for XXX company, currently we are serving XXXX，XXXX customers (先给2个大客户的名字，最好是同目标客户时同类的). We have passed ISO9001, and our products has passed UPC certificate. We are very confident that you can rely on us as a capable vendor.
I am writing to introduce a new product to you. This product is targeting 20-29 years’ lady. The sales in XXX market have proven to be very successful. Within only 2 months, the sales have reached 100000 units. I noticed from your web site, that 20-29 years’ lady is one of your major clientele, so introduction of product XXX should be a big sales hit for you.
BTW, we have the samples ready. Do you want to evaluate this new product XXXX?