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 計算公式:W=0.02466×δ(D-δ)說明:理論質(zhì)量按密度7.85g/cm3計算D—外徑δ—壁厚普通碳素鋼電線套管的尺寸及質(zhì)量公稱尺寸/mm外徑D/mm壁厚δ/mm理論質(zhì)量W/kg1m6m7.5m13161925323851647612.715.8819.0525.431.7538.150.863.576.21.61.61.81.81.81.82.02.53.20.4380.5810.7661 (共 403 字) [閱讀本文] >>
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 計算公式:W=0.02466×δ(D-δ)說明:理論質(zhì)量按密度7.85g/cm3計算D—外徑δ—壁厚普通碳素鋼電線套管的尺寸及質(zhì)量公稱尺寸/mm外徑D/mm壁厚δ/mm理論質(zhì)量W/kg1m6m7.5m13161925323851647612.715.8819.0525.431.7538.150.863.576.21.61.61.81.81.81.82.02.53.20.4380.5810.7661 (共 403 字) [閱讀本文] >>