Feature: low carbon steel, high tensile, high quality, little spark and perfect shape. Model ... ,20kgStandard: AWS ER70S-6, GB/TER50-6 Feature: low carbon steel, high tensile, high quality, little spark and perfect shape. Application ... used in industries of vehicles, bridge-engineering, machine-engineering, steel structures, shipping manufature. Chemical composition ofwire: C Mn Si S P ...