Len Nnukwu silencer, ike nguzo aro, pụrụ iche a haziri nke ala-mkpọtụ unit, iji shei na etiti na ujo absorption ọrụ;
A-tank Nnukwu mmanụ ụgbọ mmiri na-eme ka ọrụ na-aga n'ihu ogologo oge;
A-➢ Onye na-agbaji elekere eletrik na-enye nchebe na-ebugharị, onye na-ahazi ikike ikuku ọkụ iji hụ na nrụpụta volta kwụsiri ike;