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nh61874p
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Sep 26, 2011
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09/28/11 at 08:05Aluminum
Today's lesson is very general, we hired a teacher for the plant engineers, exclusively for our professional students a vivid world and the application of combined courses, so I learned a lot, ah, mainly about is
aluminum surface classification by the classification
Glossy Series
aluminum & reg, see McQuay air conditioning maintenance; bright side products as a mirror smooth surface, the surface is oxidized General General The products are widely used in various indust |
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