4寸的焊管为什么直径是114mm,4寸不应该等于101.102mm,103mm,104mm,105mm都属于标准尺寸吗?
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/03 10:42:13
![4寸的焊管为什么直径是114mm,4寸不应该等于101.102mm,103mm,104mm,105mm都属于标准尺寸吗?](/uploads/image/z/7923316-4-6.jpg?t=4%E5%AF%B8%E7%9A%84%E7%84%8A%E7%AE%A1%E4%B8%BA%E4%BB%80%E4%B9%88%E7%9B%B4%E5%BE%84%E6%98%AF114mm%2C4%E5%AF%B8%E4%B8%8D%E5%BA%94%E8%AF%A5%E7%AD%89%E4%BA%8E101.102mm%2C103mm%2C104mm%2C105mm%E9%83%BD%E5%B1%9E%E4%BA%8E%E6%A0%87%E5%87%86%E5%B0%BA%E5%AF%B8%E5%90%97%3F)
4寸的焊管为什么直径是114mm,4寸不应该等于101.102mm,103mm,104mm,105mm都属于标准尺寸吗?
4寸的焊管为什么直径是114mm,4寸不应该等于101.102mm,103mm,104mm,105mm都属于标准尺寸吗?
4寸的焊管为什么直径是114mm,4寸不应该等于101.102mm,103mm,104mm,105mm都属于标准尺寸吗?
4吋的焊管为什么直径是114mm?4吋本应该等于101.6mm ,这没错!但这种以【吋】为单位的管材是以管子的内径标识旳,4吋的焊管外径是114mm,说明管壁是5mm厚,佘此类推.