... -current,under-voltage protect function,safety.6.100% inspection for mainly components7.Small size,light weight,protable,noiseless,high duty ... .Outdoor installation,building installation. 2.Equipment installation and maintainance.3.Steel construction and industry manufacture.4.Petroleum pipeline weld5.Highway bridge ... diameter(mm)1.6-3.2§.COMPANY VIEW & PRODUCTION LINE: SINGLE PHASE ARC WELDING MACHINE