Ngaphambi kokuba ithunyelwe echwebeni, iarhente yomthengi yeza kujonga umbhobho wentsimbi ongenamthungo. Olu hlolo lwalumalunga nokuhlolwa kwembonakalo yombhobho wentsimbi ongenamthungo. Iinkcukacha ezifunekayo kumthengi zezi:I-API 5L /I-ASTM A106 Ibanga B, SCH40 SMLS 5.8M. Sinobubanzi bangaphandle kwaye Ubukhulu bodonga kunye nembonakalo yombhobho wentsimbi zipeyintwe ngomnyama kwaye zahlolwa. Ummeli wabathengi ubonakalise ukwaneliseka. Namhlanje siza kupakisha, sivale size sithumele kwisikhululo sokuthumela. Sinethemba lokuba abathengi baza kufumana imibhobho yethu yentsimbi ngokukhawuleza kwaye baxhase ukusetyenziswa kwayo kwiiprojekthi zabathengi.