We can send videos and pictures of ordered products to customers prior to delivery. If customers are satisfied with the goods, we will deliver them immediately. We also can dispatch engineers to the customers' place, in order to provide testing service for our heavy equipment and complex CNC machines. In that case, customers have to cover the travel, board, and lodging cost for the engineer's attendance. We have prepared passports for the engineer. Once the visa is approved, our engineer will be all ready to go. Generally speaking, the product has a 12 month warranty. In addition, we manufacture OEM products which are custom made to order.