Stick welding machine, also known as Shielded Metal Arc Welding (SMAW), or Manual Metal Arc Welding (MMA or MMAW), or Flux Shielded Arc Welding, is the most widely used welding process. There are various advantages and limitations of stick welding, however, we cannot deny the fact that it is one of the oldest styles of welding.And it is also extremely versatile and therefore used in areas such as heavy equipment maintenance, construction, and also pipeline welding. http://www.youliweldingmachine.com/inverter-welding-machine/stick-welding-machine/