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qzz10011

qzz10011 publicou:

qzz10011
Physical properties of metal materials Physical properties of the metal main considerations: ⑴ density (specific gravity): ρ = P / V units of g / cc or t / m, where P is the weight, V is the volume. In practice, in addition to calculate the weight of the metal parts according to density, but it ...

meishengchao

meishengchao publicou:

meishengchao
Moderator: Two new conference this year I attended, we are more concerned about, you just said environmental standards, including the EGGER flooring say innovation could relatively weak point, from my two new product launch is like poison floor of the event last year, we are more concerned about ...