Utility Model Patent No.: ZL201520100356.2
The hammerhead blank is cast using a silica sol process and made of ZG270-500 material. Two alloy pieces are welded to the tail of the hammerhead to achieve secondary crushing of the material during the crushing process, thereby increasing the output and fineness.
The alloy used is CL35 or ZL10A Zigong alloy, with a smooth bottom surface, beautiful appearance, and complete models.