These ala kwụ ọtọmkpali gia A na-eji cylindrical reducer gears,nke bụ nke mpụga spur gia . Ha bụ ndị ala , elu ziri ezi ISO6-7 .Material :20MnCr5 na okpomọkụ na-emeso carburizing , ike siri ike bụ 58-62HRC .The ala usoro na-eme ka mkpọtụ obere na-abawanye gia ndụ.