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and why we use that(bearing or rolling)?and...if its format be .*ppt (is better).e.g needle loller bearing.or ...

2007-03-13 20:22:31 · 1 answers · asked by ali r 1 in Science & Mathematics Engineering

1 answers

there are so many sites for this info. why wait for at yahoo answers?

2007-03-15 05:56:43 · answer #1 · answered by purimani2005 4 · 0 0

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