According to online information, there are two main types of beef used in "Salabor" Korean cuisine:
1, transported to the store by air from Korea. As an internationally renowned catering brand, Salabor has strict requirements on the selection, breeding, slaughter and post-processing of cattle breeds. The beef used in "Salabor" has been deacidified and quickly frozen. The quality and taste of deacidified beef have been greatly improved. The meat quality of frozen beef is more tender and delicious, fat but not greasy, thin but not firewood, soft in color and beautiful in pattern.
2. Choose beef specially made by Fucheng Meat Industry Group of Hebei Dachang and Huaan Meat Industry Group. These two companies are pioneers in domestic cattle raising and slaughtering industries. In strict accordance with the production process of material selection, feeding, breeding and slaughter, they select domestic excellent calves and fatten them with special feed to make their meat quality form natural marble spots and oil lines, and each cow must reach more than 600 kilograms before slaughter. After acid treatment and health quarantine, its meat quality meets the national health standards and is of high quality to meet the needs of chain stores of "Best Selling Cloud".
I hope this answer will satisfy you.