If you just print a barcode and stick it on clothing, any code system can be used. If you want to use it with a cashier system, it is recommended to use ENA-13 code or CODE 128 code. ENA-13 code is If you cannot use it casually, you must apply to the National Commodity and Article Coding Center. It is best to use 128 codes. Writing is very simple. As long as you have a barcode printer and barcode software, select the barcode system, enter the data, the barcode will be automatically generated, and then print it out and stick it on the clothing. Provided by Aisense Barcode Technology Group in Qingdao, Shandong Province www.ausense.com