1. Akpụkpọ anụ PU: Ohiri isi ahụ bụ nke ejiri akpụkpọ anụ PU dị arọ mee, ọ na-amịkọrọ ọsụsọ ma na-eku ume nke ọma, na-eme ka ọzụzụ ahụ dị mma.
2. Paịpụ ígwè gbara ọkpụrụkpụ: A na-eji paịpụ 40*80mm eme ihe n'ozuzu ya, a na-agbakọta paịpụ ahụ gbara ọkpụrụkpụ nke ọma. A na-eji akara Hummer tee plọg paịpụ ahụ akara, a na-ejikọkwa skru mmiri ahụ na mma azụmaahịa, nke siri ike ma dị mfe iji.
3. Ihe e ji ígwè anaghị agba nchara rụọ: ígwè gbara gburugburu nke nwere ike dị elu, nke na-eme ka ọzụzụ dịkwuo elu.
4. Ihe mkpuchi rọba nke na-egbochi mmịpụta: ala ya nwere ihe mkpuchi rọba nke na-egbochi mmịpụta, nke na-eme ka ọ kwụsie ike ma na-egbochi mmịpụta na ala.