A&G has established a stringent quality control system to ensure guarantee quality consistency. We have an advanced OPC drum optoelectronic characteristics test system, including coating thickness gauge, spectrophotometer, metallographic microscope, circular run-out instrument, concentration gauge, electric potential tester, dust particle counter, Surface Roughness Tester, and roller instrument etc. At the same time, the company conducts on-going manufacturing process control, and carries out quality inspection analysis on each batch, which guarantees the high-performance and high-quality of A&G products.