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ER70S-3 ER50-3  
in common use in plank gold etc.lamella work a situation for needing high speed welding

ER70S-4   ER50-4 
in common use to weld the situation in the construction thing such as: shipbuilding vehicle  bridge building tube piece etc to connect and fill the cape

ER70S-6  ER50-6  
in common use to weld the situation in the construction thing such as: shipbuilding vehicle  bridge building tube piece etc to connect and fill the cape
 

ER70S-7  
used for whole position of the container car building etc, plate with zinc steel plate weld
 

ER70S-G ER50-G 
used to the  slab of the high electric current to connect cape welding and horizontal etc of welding, often use to weld the situation in shipbuilding bridge builing etc

ER80S-G ER55-G
use in bridge, building pressure contianer etc welds the situation