Full Rainbow International Limited is a professional roller supplier, Which is determined to provided DVR (developer rollers) and PCR to our manufacture/re- manufacture of toner cartridges. Our factory is authorized with ISO 9001:2000 ,and with over 20 years experiences in production of high precision rollers. We have a great R&D team to develop customized design/products according to customers' requirement. Pls visit our Booth at NO. 5629 for more info.