Ebe ọtụtụ n'ime mmepụta katọn nke taa bụ nke a kara aka maka ahịrị nrụpụta akpaaka, na-ahụ na mmeghe nke ngwaahịa gị emechara ezighi ezi, nke a pụrụ ịdabere na ya adịbeghị mkpa.
1) Ogologo tupu nchekwa
2) eriri aka ekpe dị ala obosara obosara
3) Nhazi pụrụ iche, chebe elu igbe
4) A na-ebugharị ụgbọelu na-ebu elu na usoro pneumatic elu / ala
5) Creasing usoro maka anwụ ọnwụ ahịrị