Your purchase order must be based on our quotation. Upon receipt of your purchase order we will issue a Proforma Invoice within 2 working days, if you have not heard from us within the time stipulated, please contact us immediately, our telephone number is 0086-574-88225985. A regular (not sample) order should be, at least, USD3,000. However, a sample order has no such limitation. A MOQ(minimum order quantity) may also be applicable (depending on product type)