All good materials we used.
We use brand new Toshiba K4107 or SL 18N50. and HS transformer, D9202, Songle Relay, Sancon Capacitor etc. All good quality and stable materials.

Features:
1, Outstanding Arc Stability with Low Spatter.
2, Auto Protection against Over-Voltage and Over-Current.
3, Wide Range for Input Voltage: 230V ± 15%.
4, Super Portable and Energy Saving.

Applications:
Education
Maintenance, Repair
Farm
Fabrication
Construction
Steel Erection 

Technical Specification: