Since the establishment of Wintop (Shanghai) Co., Ltd. has been focusing on the physical properties of materials testing field, is committed to creating an advanced, professional, perfect physical properties testing program for customers. To this end, Cloud Spectrum joined hands with a number of foreign famous physical property testing instrument manufacturers, It is the primary agent of LLOYD of Britain, Chatillon of America, Newage of America, Bareiss of Germany, Atlas of America, RDM of Britain, Shimadzu of Japan, Coesfeld of Germany, Julabo of Germany, Memmert of Germany, Ametek of America and other manufacturers in China. At the same time, it is also the technical service center of major manufacturers in mainland China.