We have been aprroved by ISO9001:2000 Quality Management System and ISO14001:2004 Enviroment Quality System. The features of our products: 1.well-proportioned coating&dots. 2.high distinguishability&high-speed of sensitization. 3.stabilized performance&high pressrun. Our products adopt many advanced technologies,including electrolyzing dots,anodic oxidation, extruding technology,sensitive coating layer and electrolytic aluminium.