Founded in 1998, Beijing Trans Manufacture and Trade Co., Ltd. (BTMT) is an innovative technology company. With the capabilities of independent industry-leading R&D and the capabilities of manufacturing and sales, BTMT provides complex optical solutions that are perfect for customers’ situations, and a featured service of “7-Day Delivery” worldwide. With the history of 20 years, we specialize in customized superior precision optics, thin-film coatings and imaging assembly.