Our firm since its inception, normally regards item top quality as company life, constantly make improvements to generation technology, improve product excellent and repeatedly strengthen organization total good quality management, in strict accordance with the national standard ISO 9001:2000 for Audio Sweeping Frequency Signal Generator, Electric Leakage Detector , Programmable Ac Dc Withstand Voltage Insulation Tester , Linear Dc Power Supply ,Stable Dc Power Supply . Seeing believes! We sincerely welcome the new customers abroad to set up business relationships and also expect to consolidate the relationships with the long-established customers. The product will supply to all over the world, such as Europe, America, Australia,Bahrain , Cairo ,Australia , Swiss .We will not only continuously introduce technical guidance of experts from both home and abroad, but also develop the new and advanced products constantly to satisfactorily meet the needs of our clients all over the world.