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Well, it was through apprenticeships. My neighbor, a union stairmaker, learned his craft through the union when he was trained under a German craftsman, who learned his craft in Germany as an apprentice.
As for those who learn on their own. You would be hard pressed to find a significant number of self taught welders, plumbers, electricians as skilled as the union guys.
As for your welders, if they are not certified, we would not buy anything from them.
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steve
old rocket inguneer
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