pulmonary tuberculosis is the most common form of tuberculosis bacteria that cause tuberculosis could also spread from the lungs to other parts of the body through blood or the lymph fluid an active tb disease of the lungs airways or larynx is considered to be highly contagious
Before extrusion, the HDPE can be pigmented to yield color-coded pipe. Common PEX tubing colors are natural (hazy clear, unpigmented), white, black, red and blue. The red and blue colors are used to help plumbers and homeowners distinguish between hot and cold water supply lines.
Not all PEX is the same. Many in the industry donât realize that there are three different methods for manufacturing PEX â PEX-a which uses the Engel or peroxide method, PEX-b which uses the silane method and PEX-c which uses the electron-beam or radiation method.