Valvụ slab

atụmatụ
1. Nhazi zuru oke na-ewepụ nrụgide na mmiri ọkụ nke ọma ma na-ebelata ihe siri ike dị na mmiri mmiri
iwepụ valvụ;
2. Nhazi akara pụrụ iche, nke mere na mgbanwe ahụ na-ebelata nke ukwuu;
3. A na-eme akara ígwè n'etiti bonnet na ahụ valvụ ahụ, efere valvụ na mgbanaka oche valvụ;
4. Igwe mkpuchi elu ígwè (mkpuchi) nke e ji simenti mee ka carbide sie ike, nke nwere ezigbo nguzogide iyi, iguzogide nchara;
5. A na-edozi mgbanaka oche ahụ site na efere edoziri iji nọgide na-enwe ezigbo nkwụsi ike;
6. Ejiri usoro mkpuchi agbagọ agbagọ mee ka ogwe osisi ahụ dị mfe iji dochie mgbanaka mkpuchi ogwe osisi ahụ site na nrụgide.