HSS aina ya waya chuma mkono chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma chuma
Bidhaa zinatumika katika mashine na vifaa vya ujenzi wa miundombinu kama vile umeme, meli, utengenezaji wa magari, ujenzi, barabara, madaraja, chuma, migodi ya migodi, tunnel ya pembe, usimamizi wa kisima na ulinzi.