Ball for American grinding

摘要

(57) Abstract Objective The United States not to flow out with the water, guttation just the water easilyThe ball for the American grinding which is produced is offered. Constitution Lap in one side upper part approaching of wall 2 of ball 1 large numberThe creasing hole 3 is formed. Rim edge of this creasing hole 3 2 -3mm making outside direction extend, forming the concave falling section 4 where the United States accumulatesIt does. Advantages Guttation the water the occasion, is finished grinding the United States which concave falling section 4With the reservoir and the water it does not flow out inside.