welding contact tip 1.material:brass,copper,CuCrZr 2.model:m6,m8 ... .2mm 4.length:25mm,28mm,30mm,45mm.. CO2 welding torch contact tipWe are trade company with partner factories professionally in producing ... as welding accessaries such as welding contact tip,contact tip holder,welding electrode, electrode cap,electrode contact,etc.air plasma cutting torchwelding torch ...