Safety screw for loading and unloading prefabricated large tonnage.

摘要

SCREW SAFETY for loading and unloading PREFABRICATED large tonnage, essentially characterized by comprising a conical body with a helical filleted and TOPPED BY A HEAD PRESENTING A through hole suitable for receiving SIRGAS OR HOOKS TO FACILITATE handling ONCE HALLE SUBJECT TO MANUFACTURED TO PART fades AND RECOVER IS YOUR CONICO MERCED character.