... all positaiton . 1) J 421 Model GB( AWS) E4313 (E6013) 2)They are widely used in power station boilers, pressure ... , ships, vehicles, petroleum and chemical industry, hydropower and thermal power stations, metallurgical industries, skyscrapers, heavy machine equipment, and offshore ... is the chemical composition to you for your reference . J 421 Electrical Welding Electrodes (AWS E 6013) Golden bridge ...