Being supported by an highly developed and specialist IT team, we could give technical support on pre-sales & after-sales service for Conductor Dc Resistance Test, Pressure Tester , Audio Sweep Generator , Mos-620ch Readoot Oscilloscope ,Linear Dc Power Supply 20v . We guaranteed quality, if customers were not satisfied with the products' quality, you can return within 7days with their original states. The product will supply to all over the world, such as Europe, America, Australia,Hamburg , Peru ,Sierra Leone , US .We have established long-term, stable and good business relationships with many manufacturers and wholesalers around the world. Currently, we are looking forward to even greater cooperation with overseas customers based on mutual benefits. Please feel free to contact us for more details.