. Do you provide samples? Yes, we provide samples, the sample fee will be refunded to you when the order is confirmed. 3. What kind of documents do you accept for printing? PDF, Core Draw, high-resolution JPG. 4. How soon can I receive the samples? The samples will be ready after you pay the sample fee and send us the confirmation document Delivery within 15-25 days. Samples will be sent to you by courier and arrive within 7 days.Metal Stamping factory website:http://www.yuchao-bolts.com/metal-stamping/