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How is Aluminum wire feeding different from that of Calcium wire feeding as far as the purpose is concerned also what I do not understand is what has wire feeding to do with the purpose and how are aluminum and calcium different with purpose?

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  • $\begingroup$ Now that is a word sandwich. One question or three. Now I understand English may not be an OP first language, but unless we understand the question, we will not be able to answer. Throw in some punctuation! Isn't it calcium-core wire? $\endgroup$ Feb 12 at 22:22

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