... /min competitive price Light structure CE certificated OEM 50kg Welding turntable , there are ON/OFF knob, FORWARD / REVERSE knob,speed ... the relate knob to achieve automatic welding; this welding turntable is a type of automatic worktable, it can works ... TIG welding process. Making a set of specila circurnferential automatic welding system, this welding turntable is suitable for circula and ring ...