plumbers Chelsea Wikipedia about ValvesA valve is a device that regulates, directs or controls the flow of a fluid (gases, liquids, fluidized solids, or slurries) by opening, closing, or partially obstructing various passageways. Valves are tech czytaj całość tutaj
plumber Chelsea Steel pipes in plumbingGalvanized steel potable water supply and distribution pipes are commonly found with nominal pipe sizes from 3?8 inch (9.5 mm) to 2 inches (51 mm). It is rarely used today for new construction residential p kontynuuj czytanie
boiler repairs Chelsea Materials for plumbing - wikipedia:Water systems of ancient times relied on gravity for the supply of water, using pipes or channels usually made of clay, lead, bamboo, wood, or stone. Hollowed wooden logs wrapped in steel ciekawa historia