序号内径I.Dmm外径O.Dmm外径公差mm每卷长度m钢管对应规格电线管对应规格mm"mm"12#11.416.1&plu***n;0.25081/4131/215#14.119.0&plu***n;0.250103/8165/817#16.621.5&plu***n;0.250151/2193/424#23.828.8&plu***n;0.225203/425130#29.334.9&plu***n;0.2252513211/438#37.142.9&plu***n;0.4253211/43811/250#49.154.9&plu***n;0.4254011/251263#62.669.1&plu***n;0.6105026421/276#76.082.9&plu***n;0.6107021/276383#81.088.1&plu***n;0.610803101#100.2107.3&plu***n;0.651004130#126.4133&plu***n;1.031255)