... Product Mterial:carbon steel,45#steel1. The auger flight include spiral blade and the middle axis,the material of spiral blade is Low ... -carbon steel,and the material of the middle axis is 45# steel.2. about the helical blade of the auger, Continous cold rolled ... cement , coal unloader , planting machine ,earth auger, drilling machine , snowplough, snow blower,and the snow sweeper.