Customers can draw the actual sketch size details of the site according to the actual wall points on the site, especially for the distance between the column and the column, and remove the dust, oil and other impurities on the surface of the column before measurement for the accuracy of measurement. Determine the measurement points of the column section as needed, these points can be the edges, diameters, etc. of the section. Place the measuring tool on the identified measuring points and make sure it is perpendicular to the cross-section. Measure the diameter of the cross-section by carefully reading the scale on the gauge.
For example, the figure below, which is based on the distribution of a double column with a total length of 7 m, can be divided equally by 1.75 m and 2 m.