Surface Grinding Ball

S the surface area of the ball PIconstant, a mathematical constant that is equal to the ratio of the circles circumference to its diameter. 3.14 isa commonly used value for PI R- the radius of the ball. The volume of a grinding ball is determined by the formula V43R 3, where V- the volume of the ball


Note: If you're interested in the product, please submit your requirements and contacts and then we will contact you in two days. We promise that all your informations won't be leaked to anyone.