Locating in Changchun bonded area, which has absolute advantage of importing and exporting, with the R&D team having more than 10 years experience of OLED material and intermediate development, the sales team having 7 years experience of OLED material marketing. Changchun Tuo Cai combines the good resource in order to offer good products and service, positioning from OLED materials, develops to Quantum Dots, Lithium battery technology and biochemistry intermediates. With excellent R&D backgroun...