... at the highest temperatures. 4.Extremely durable. Detailed Product DescriptionWelding contact tip, supply the style for Binzel, Tweco, Bernard, Esab, Panasonic ... , OTC, Kemppi, Tregaskiss, Fronius etc.Welding contact tip, material Cu-E / CuCrZrBinzel type: M5*18, M6*25, M6*28 ... *45, M6*42, M6*70Packing: neutral packing , 50pcs/plastic bag Contact Tip M6X25mm / 28mm