"Sincerity, Innovation, Rigorousness, and Efficiency" is the persistent conception of our company for the long-term to develop together with customers for mutual reciprocity and mutual benefit for ground resistance for medical equipment, Digital Loudspeaker Polarity Tester , Dc Regulated Adjustable Dc Power Supply , Digital Bridge Tester ,Programmed Voltage Resistant Insulation Tester . We have expanded our business into Germany, Turkey, Canada, U. S. A. , Indonesia, India, Nigeria, Brazil and some other regions of the world. We are working hard to be one of the best global suppliers. The product will supply to all over the world, such as Europe, America, Australia,Kuwait , Cannes ,Hungary , Guatemala .We now have been making our goods for more than 20 years . Mainly do wholesale , so we've the most competitive price , but highest quality. For the past years , we got very good feedbacks , not only because we offer good solutions , but also because of our good after-sale service . We are here waiting for yourself for your inquiry.