1. Ebumnuche nke Njikọ Hose na-agbanwe agbanwe
1) Njikọ mgbapụta - Na-eme ka njikọ usoro ọkpọkọ kwụsiri ike
2) Absorption Vibration - Na-ebelata nnyefe ngwa ngwa
3) Mbelata mkpọtụ - arụ ọrụ dị jụụ
2. Uru:
Ụdị anaghị agbado:
Mmiri-kọntaktị elu & ahụ otu ihe
Enweghị welds, na-ewepụ corrosion intergranular
Ụdị welded:
Akwa-nrụgide akara
Multi-pass ịgbado ọkụ maka ntapu-proof arụmọrụ
Ndakọrịta mgbasa ozi pụrụ iche
Kwesịrị ekwesị maka mmanụ na kemịkalụ (FM kwadoro)