Tianjin Tongwei Technology Development Co., Ltd., established on 2012-04-17, The scope of business includes the development of new technologies for photovoltaic light emitters,consult,Development of transfer services and related equipment,Sales;feed,Agricultural and sideline products,building materials,metallic material(tungsten,tin,except antimony),lubricating oil,rubber products,Wujinjiaodian sales;Freight Forwarding Services;coal sales.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)