6.4 Connection material

6.4.1 Welding material(1) The manual welding electrode shall be of the grades in GB/T 5117Carbon Steel Covered Electrodes, GB/T 5118 Low Alloy SteelElectrode and GB/T 983 Stainless Steel Electrode which shall matchthe mechanical performance of base metal. ......（本文共 2149 字 ）     [阅读本文]>>