medium frequency inverter spot (projection) welding machine Model No.: DIT-80/150/200/300 Rated capacity: 80/150/200/300 Mid-frequency ... first-class standard.Equipped with LC-D series of intermediate frequency welding controller, current closed-loop control, highly speed and ... .5+3.5 aviation, aerospace, automotive, compressors, Save electri medium frequency inverter spot (projection) welding machine