Wolton is a high-tech company which specializes in developing and manufacturing the PCR of printer and copier. Every year we manufacture PCR and transfer roller more than 60 million pcs. We are the first one who make the commitment in the industry, there is no pollution of the PCR, if happen we will offer compensation for 1 million RMB. More than 3 years, there is no such incident happened. The defective rate of our product is less than 0.3% .