CNP canal iron is iron with a long size, where this iron has a shape like the letter C. The use of this iron is widely used in the construction field as a roof truss, industrial field, and the automotive field. In the market, this iron has a standard length of 6 meters. There are several types and sizes of CNP canal irons that are widely used, such as the following. CNP 60 channel iron weighs 9.76kg with a size of 60 x 30 x 10 x 1.6mm. CNP 75 channel iron weighs 12.4kg with a size of 73 x 35 x 15 x 1.6mm. There is also an iron weighing 13.92kg with a size of 75 x 45 x 15 x 1.6mm and a weight of 19.5kg which has a size of 75 x 45 x 15 x 2.3mm. CNP 100 channel iron weighs 17.5 and 24.4kg with a size of 100 x 50 x 20 x 2.3mm. There is also a 33kg weighing 100 x 50 x 20 x 3.2mm. CNP 125 channel iron has a weight of 27.1kg which has a size of 125 x 50 x 20 x 2.3mm, and a weight of 36.8kg iron whose size is 125 x 50 x 20 x 3.2 mm. CNP 150 canal iron weighs 29.8kg with a size of 150 x 50 x 20 x 2.3mm, and a weight of 40.6kg iron which has a size of 150 x 50 x 20 x 3.2 mm.