Abstract: A method of making a golf club head includes the steps of providing a face of a club head, the face having a ball striking surface and a perimeter defining a border of the ball striking surface, providing a golf club head body that includes a crown, a sole, a toe, and a heel, attaching the face to a front portion of the club head body, and milling the ball striking surface and an edge portion of the face to cut a machined surface into the ball striking surface and the edge portion. The milled surface includes a plurality of first grooves located along the ball striking surface and defining a first depth, and a plurality of second grooves located adjacent the perimeter along the edge portion and defining a second depth. The first depth is different than the second depth.

Abstract: An electrostatic spray disinfecting system is integrated into a mobile environment to enable the mobile environment to be automatically subjected to an electrostatic spraying operation when the mobile environment is moving or stationary without the need for a human operator to participate in the spraying operation. An electrostatic sprayer of the system is mechanically coupled to a structure of the mobile environment in a preselected position relative to an internal compartment of the mobile environment. A reservoir of disinfecting material and is fluidly coupled to the electrostatic sprayer for delivering a flow of the disinfecting material to the sprayer.