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1.How do you do regarding quality control ?We have a strictly quality inspection department. Our engineers will carefully check and test the products for many times before we deliver them to customers. To make sure customers can get the high quality products. Only the machines that have passed the strict quality inspection can be delivered to customers.2. Do you offer OEM and ODM services ?Yes, we provide OEM and ODM services. We have our own R&D department with experienced designers and engineers and many production lines , so we have the great capacity to offer customers high quality products according to customers’ demands, ideas and samples.3. Where is your factory located ?Our factory is located in Shenzhen, China. Anytime when you are available, you are warmly welcomed to China for a visit to our factory !4. Do you have any warranty ? Yes, we do. One-year warranty is given to most of our products. 5. How is your after-sale service ? We have a professional technology supporting team for your timely services. You can get help in time by telephone, online chat (Alibaba & Whatsapp). Please contact us whenever you have any concerns. Best services will be offered.6. What certifications do you have ? All of our products have the RoSH, ISO, CE certifications which ensure the quality and safety. Our products are under strict quality management to ensure good quality. Because we fully understand that it will be great trouble if products have any problems during working at oversea.7. How about the shipment ? We have large quantities of goods in stock and we cooperate with freight agents who provide fast shipping.