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Discussion Starter #1
What are the radius arms from an EB made of, Cast Iron or cast steel. I had a 30yr welder tell me CS welds better and does not requier all the pre and post heat? What are all you guys doing when you lenghten and wrist joint?
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way i understand it is that steel anything is better to weldand easier then iron because steel is iron and carbon and has less impuritees
 

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Discussion Starter #3
OK mighty duck, That sounds right but the Question of the day is what are the arms made of!!
thanks for the reply!
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