If you have two cranks sitting side by side and dont know which is which How do you know the difference between one crank and another. That is an American made one and an Asian one. Do you get material analysis documentation like melt and heat numbers. Are there specifications or what. No coin drop test please as some of these cranks are $2100 bucks and thats enough coin dropped already. how do you "take a sample" What size chunkage and from where.
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