镀锌钢管理论重量表规格公称内径DN15DN20DN25DN32DN40DN50DN65DN80DN100DN125DN150DN200DN200..外径 mm 壁厚 mm最小壁厚mm英寸1/23/411.251.522.534568821.326.933.742.448.360.376.188.9114.3140168.3219.1219.12.82.452.82.453.22.83.53.063.53.063.83.3254.03.54.04.04.54.56.0（焊管）6.5...

时间:2025-01-22 03:42栏目:行业资料