Umbhobho ongqukuva owenziwe ngesinyithi uyimibhobho yentsimbi edityanisiweyo enemibhobho yentsimbi eshushu-diphu kumphezulu.Ubungakanani obudumileyo 2inch, 3inch, 4inch.I-galvanizing inokunyusa ukuxhatshazwa kwe-corrosion yepayipi yensimbi kunye nokwandisa ubomi bayo benkonzo.Umbhobho wegalvanized unoluhlu olubanzi lokusetyenziswa.Ukongeza kwimibhobho yentambo yamanzi, irhasi, i-oyile kunye nolunye ulwelo jikelele olunoxinzelelo oluphantsi, ikwasetyenziswa njengemibhobho yemithombo yeoli kushishino lwepetroleum, ngakumbi iindawo zeoli ezikude nonxweme, nezifudumezi ze-oyile nezipholileyo zokupholisa izixhobo zokupheka imichiza., I-Distillation yamalahle ihlamba imibhobho yokutshintshiselana kwe-oyile, kunye neemfumba zemibhobho ye-trestle, imibhobho yesakhelo yokuxhasa itonela kunye nemibhobho yentsimbi yesakhiwo, njl.