👉 A crack is a small, irregularly shaped hole in a material that can be caused by friction or other mechanical forces. The term "cracking" refers to the process of causing a crack in a material, usually due to friction or other mechanical forces.
👉 A crack is a small, irregularly shaped hole in a material that can be caused by friction or other mechanical forces. The term "cracking" refers to the process of causing a crack in a material, usually due to friction or other mechanical forces.
