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.
Like other B vitamins, vitamin B12 (also known as cobalamin) is important for your metabolism. It also helps in the formation of your bodyâs red blood cells and in the maintenance of your central nervous system. These foods contain vitamin B12: 1  Eggs. 2  Fortified foods, such as soy milk.3  Meat.4  Milk and milk products.5  Organ meats, such as liver and kidney. 6  Poultry, such as chicken and turkey. 7  Shellfish, such as crabs, lobster and shrimp.t also helps in the formation of your bodyâs red blood cells and in the maintenance of your central nervous system. These foods contain vitamin B12: 1  Eggs. 2  Fortified foods, such as soy milk. 3  Meat. 4  Milk and milk products. 5  Organ meats, such as liver and kidney. 6  Poultry, such as chicken and turkey.