If a food bears a USDA Organic label, it means it's produced and processed according to the USDA standards. The seal is voluntary, but many organic producers use it. Products certified 95 percent or more organic may display this USDA seal.
A machinist is a person who uses machine tools to make or modify parts, primarily metal parts. This process of machining is accomplished by using machine tools to cut away excess material much as a woodcarver cuts away excess wood to produce his work.
Machining is the broad term used to describe removal of material from a workpiece, it covers several processes, which we usually divide into the following categories:t is important to view machining, as well as all manufacturing operations, as a system consisting of the workpiece, the tool and the machine. The introduction topic in this section covers primers on topics like mechanics & shear bending in machining, and heat in machining.