1. Izinhlobonhlobo zokuzalanisa unogwaja, ukuzalanisa onogwaja besilisa, ukuzalanisa onogwaja besifazane.
Ingane kanogwaja nomama kanogwaja bazivikela kuphela kodwa abahlukani.
Kungakhuthaza ukukhula kwengane kanogwaja.2.Ukungenisa umoya omuhle kungagwema isifo esithathelwanayo ngokuphumelelayo.
Ingakhuphula izinga lokusinda likanogwaja wempahla.
Sakha ibhodi lokuwisa elitshekisayo lokushelela phansi indle iye phansi.
3. Ukuze ugcine ikheji likanogwaja lihlanzekile futhi lihlanzekile, ungasebenzisa ibhande lokuhlanza indle ngokuzenzakalelayo noma isicoci sendle ukuze uhlanze indle.
4. Impahla eluhlaza: ucingo lwensimbi oluthambile olusezingeni eliphezulu, ucingo lukathayela, ucingo lwensimbi engagqwali.
Ishidi elakhiwe ngamapulangwe, ishidi le-aluminium-zinc kanye neshidi lensimbi engagqwali.5. Ukwelashwa kwendawo: i-galvanizing eshisayo.Ububanzi benetha langaphambili nocingo lwensimbi oluseceleni: 3mm.
