Lub lim kawg cap feem ntau ua haujlwm rau kaw ob qhov kawg ntawm cov khoom lim thiab txhawb nqa cov khoom lim.Nws yog stamped rau hauv ntau yam duab raws li xav tau los ntawm cov ntawv hlau.Lub hau kawg feem ntau yog stamped rau hauv qhov zawj uas qhov kawg lub ntsej muag ntawm cov khoom lim tuaj yeem muab tso tau thiab cov nplaum tuaj yeem muab tso, thiab sab nraud yog sib txuas nrog cov roj hmab foob los ua haujlwm los muab cov khoom siv lim thiab kaw cov lus ntawm lub lim dej.