304 e akaretsa molao bakeng sa mokhoa oa ho ts'oaroa oa tšepe oa tšepe ea tšepe bakeng sa lits'ebetso tsa poping tsa poping. Lintho tsa bohlokoa tsa li-pipi li tla kenyelletsa lijo, mekoallo, lipolanete kapa lipompo tse sa sebetseng. Forging or forming operations shall be performed by hammering, pressing, piercing, extruding, upsetting, rolling, bending, fusion welding, machining, or a combination of two or more of these operations. Lisebelisoa tsohle li lokela ho ba mocheso.