In addition to the sink gauge, an important sign of quality is the finish of the steel. A satin-smooth finish will maintain its luster over time, even adding an attractive patina with age. A stainless steel sink with a surface gloss will wear more easily, show imperfections and will be more likely to need replacement before the alternative.
From the right ventricle, the blood is pumped through the pulmonary semilunar valve into the pulmonary trunk. The pulmonary trunk carries blood to the lungs where it releases carbon dioxide and absorbs oxygen. The blood in the lungs returns to the heart through the pulmonary veins. From the pulmonary veins, blood enters the heart again in the left atrium.
The blood then flows to the left ventricle through the bicuspid valve. Then it goes to the Aorta through the aortic semi-lunar valve and travels to the rest of the body. After the blood is done in the body in goes to the superior and inferior vena cava and it starts all over again.