Sixteen year experience started one year and half as quality control engineer, 11 years as mechanical maintenance engineer in many fields for example : " sex years as responsible for material transporting equipments as belt conveyors , bucket elevators , pan conveyors, , two year as raw mix crushers maintenance engineer , three years as kiln trouble shooting maintenance " Now Acting as Mechanical Maintenance Section head engineer , some times I am working as maintenance manager On behalf of mechanical maintenance manager .