The steel material only accounts for about one-third of the total framing cost. Two-thirds of the cost goes into fabrication, erection, and other labor costs. Like archeng59, I often add steel tonnage in order to have a more repetetive building that cuts down the labor costs.
1 A change in skin color is due to an underdeveloped circulatory system. 2  Babies often exhibit mottling of the skin due to their immature circulatory system. 3  The nerve supply to the fine blood vessels on the upper skin layer is still immature.
When a personâs blood cells are not carrying enough oxygen through the body, the color of the blood cells changes from bright red to a darker bluish color. Because the blood flowing through the skin is a bluish color, it causes the person to develop a blueness of the skin, lips, or fingernail beds.