Antico Elements relies on over 35 years of experience with manufacturing polyurethane architectural products. Attention to details is a hallmark of this business and we take great pride in creating rock panels, stacked stone, dry stack that rival the look and feel of natural materials but at a fraction of the cost.Cheap stone wall panels can be of high quality when manufactured correctly.ttention to details is a hallmark of this business and we take great pride in creating rock panels, stacked stone, dry stack that rival the look and feel of natural materials but at a fraction of the cost. Cheap stone wall panels can be of high quality when manufactured correctly.
1 Sometimes, a patient's own tissue can be used for valve replacement (called an autograft). 2  Patients with biological valves usually do not need to take blood-thinning medicines. 3  These valves are not as strong as mechanical valves, though, and they may need to be replaced every 10 years or so.
1 The aortic valve has three flaps, like the other valves. 2  However, the mitral valve has only two. 3  The aortic valve closes when the mitral valve opens and vice versa. 4  The mitral valve may fall prey to a mitral valve prolapse, which refers to a loosening of the muscles. The aortic valve has three flaps, like the other valves. 2  However, the mitral valve has only two. 3  The aortic valve closes when the mitral valve opens and vice versa. 4  The mitral valve may fall prey to a mitral valve prolapse, which refers to a loosening of the muscles.