All products are made with first-class raw material, our all production lines are automatic and free of dust level. Before production, our quality team will check our raw material carefully, guarantee no any issue then go on the production, after that we will recheck the finished products. Before shipment, our quality test team checks every piece of our goods again, 3 times checking to guarantee our all shipment goods are high quality and standard. Before you send the order, we will arrange the sample for your test, we promise all order's quality are kept the same as the sample quality which is confirmed by our customers.