提醒一下,mechanical engineer, 1.5mm与3.0mm的差别是:3.0mm的抗抗拉能力提高一倍,抗弯能力提高4倍。
日本的mechanical engineer比你还牛,0.0mm(没有)。
提醒一下,mechanical engineer, 1.5mm与3.0mm的差别是:3.0mm的抗抗拉能力提高一倍,抗弯能力提高4倍。
日本的mechanical engineer比你还牛,0.0mm(没有)。
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