... 3.Frequency:50/60HZ 4.Applying:PP-R,PB,PE,PE-X 20-63mm pp-r welding device1.Welding range:20 ... -63mm2.Rated volatage:220V3.Frequency:50/60HZ4.Applying:PP-R,PB, ... PE,PE-X20-63mm pp-r welding deviceModel:HT63-A3Meas:46. ... 60HZWorking temperature:0-300°cWorking Range:Ø20-Ø63mmApplying to:PP-R.PB,PE,PE-X 20-63mm ...