The main components are: ( 1 pressure) cylinder, also called working cylinder (7) 2  piston (4) connected to a piston rod (5) 3  floating piston, also called separating piston (2) 4  piston rod guide (6) 5  upper and lower attachment.
Vitamin B12 is a nutrient that helps keep the body's nerve and blood cells healthy and helps make DNA, the genetic material in all cells. Vitamin B12 also helps prevent a type of anemia called megaloblastic anemia that makes people tired and weak. Two steps are required for the body to absorb vitamin B12 from food.
The vitamin B12 combines with the folate in the formation of DNA, the genetic material in all cells. It is not only needed for the synthesis and regulation of the fatty acids, its needed for energy production also. B12 helps in maintaining the health of the nerve cell and the nervous system. The vitamin B12 is also needed for the synthesis of the red blood cells. It has been found to be very much needed for the growth and development of children. Food Sources for Vitamin B12. Mainly synthesized by bacteria, vitamin B12 is found primarily in animal products like dairy products, eggs, meat and fish. Though certain plant sources have been identified, like seaweeds and algae, the B12 found in plants are unavailable for human consumption and digestion.