Piping > Piping > Tutorials > Exercise 1—Setting up Master Catalog (MCAT) Files > Defining Combined Size Codes for Pipe and Fitting
Defining Combined Size Codes for Pipe and Fitting
Use the sample files provided at <Creo load point>\Common Files\help\sample_models\piping when working in this exercise. It is recommended that you create a copy of the piping folder on your computer.
1. In the piping folder, open the piping_data folder, and double-click the master_catalog folder.
2. Open the combined_size_code.csv file.
3. Insert a row and add the following values:
SIZE
NSIZE
BSIZE
COMBINED_SIZE_CODE
550A
\550
In the following image, new combined size code values are in red:
* 
Do not modify the file if the required combined size code is defined.
4. Save and close the Combined Size Code file.