Sebopeho sa barekisi ba k500 ba kenyelletsa khabone, 2.3% Aluminium, Manganese, Sicon, Iron, Sulur le Ticinel. Ke sebopeho sena se ikhethang se fanang ka lintho tsa bohlokoa tse phahameng, ho hanyetsa ho hanyetsa le ho senya ho siama le ho senya lintho tse mpe tse mpe. Likopo tsa li-fasteners tsena li kenyelletsa indasteri ea Petshore Petrolium, likokoana-hloko tsa limela, likompele, lik'chememi tse hlophisehileng tsa khase, lik'hemik'hale tse ikhethang le tse ling.