... DHL,EMS,UPS,etc >One year guarant Name:hot gun welding machine Type 4000I/4000Hvoltage/Frequency220v/50 Hz or 110v/40-60 ... it is very difficult to work and operate and waste much time, increase the cost of working hours, never to say ... working immediately, but the fan machine still shift 3 minutes to cool down the machine and protect the heating filaments. hot gun welding machine