We specialize in CNC machine parts such as controller, inverter, motor, plc module, drive and other parts. 2. Where is your company? Can I visit there? Our company is located in Changchun City, Jilin Province, China. Welcome the friends over the world to here. 3. Can you test the product before delivery? We can only test the used products before they leave the factory. 4. Can you send the product photos I required? Only after you settle the payment do we send the product image. 5.Your price is too high, can you give me a lower price? We believe that "you get what you pay for". And we will do our best to give you the most competitive price. 6. What's the warranty of your products? The warranty period for the used products is 3 months and for the new is 1 year.