鍍鋅鋼管常用(yòng)規格公稱口徑外徑壁(bì)厚鍍鋅管壁黑鐵管增添的重量係數(shù)MMMMMM通俗鋼管加厚鋼管610.021.0641.059813.52.751.0561.0461017.03.501.0561.0461521.33.151.0471.0392026.83.401.0461.0392533.54.251.0391.0323242.35.151.0391.0324048.04.001.0361.0305060.05.001.0361.0286575.55.251.0341.0288088.54.251.0321.027100114.07.001.0321.026125140.07.501.0281.023150165.07.501.0281.023申明:W=C*[0.02466*(D-S)*S]W--鍍鋅管每米重量:k/mC--鍍鋅管(guǎn)比黑鐵管增(zēng)添的重量係數D--黑鐵管的外徑S--黑鐵管的壁厚
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