Our machine has been tested well before shipping, if the machine have problems we must help the customer solve it positively. we are sure the machine can worked well but the user used the wrong abrasive.we have get the video from the user that the abrasive can spary out successfully, the user can choose the suitable steel shots abrasive instead of stone and soil abrasive that can make the machine work well but we don't know why the customer asked again and again to make trouble for me, I think he only wants to get the machine with lower price

1）After we receive payment, we arranged delivery as soon as possible. International shipping takes time, so please understand 2) Customer changes delivery address, resulting in increased costs 80$. We actively communicate with freight forwarders and try to charge as little address change fees as possible 3) We investigated the monitoring records and outbound records, we have put nozzles in the machine box 4) All machines have been strictly tested before leaving the factory. I will send you an operation manual so that you can operate the machine correct and normal. 5) If we didn't put the nozzle in, how did you use it and know there was something wrong with our machine?