Gear wheel is interacting with ratchet wheel, where ratchet is installed over to ratchet wheel, and gear wheel body is made of resistible steel, either made of steel with middle carbon contents, carbon-rich steel or alloy steel

摘要

The gear wheel is interacting with a ratchet wheel, where a ratchet is installed over to the ratchet wheel. The gear wheel body is made of resistible steel, either made of steel with middle carbon contents, carbon-rich steel or alloy steel, where the gear wheel body is assisted by multiple cold-hammering and stamping machines.