*GB ER49-1 Suitable for low-carbon and low-alloy steel welding, applicable for omnibearing welding. *GB ER50-6 AWS ER70S-6 Suitable for carbon-steel and 50kg high-intensity steel welding, applicable for current regulation omnibearing welding. *GB ER50-G AWS ER70S-G Suitable for carbon-steel and 50kg high-intensity steel welding, applicable for omnibearing welding.