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.
Definition. Vitamin B12 helps in red blood cell formation, production of DNA, and function of the nervous system. Vitamin B12 deficiency can occur when the body needs more vitamin B12 than it receives from the diet. Alternatively, the condition may occur when the body is unable to use the vitamin B12 from the diet.A shortage of vitamin B12 can lead to anemia.itamin B12 helps in red blood cell formation, production of DNA, and function of the nervous system. Vitamin B12 deficiency can occur when the body needs more vitamin B12 than it receives from the diet.