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A cross-linked polyethylene (PEX) pipe. Cross-linked polyethylene, commonly abbreviated PEX, XPE or XLPE, is a form of polyethylene with cross-links.It is used predominantly in building services pipework systems, hydronic radiant heating and cooling systems, domestic water piping, insulation for high tension (high voltage) electrical cables, and baby play mats.
PEX is cross-linked polyethylene, a form of polyethylene with cross-links. PEX or Pex may also refer to: Science and technology. Peer exchange, a method to gather ...
The Spanish Wikipedia (Spanish: Wikipedia en español) is the Spanish-language edition of Wikipedia, a free online encyclopedia. It has 2,009,228 articles. It has 2,009,228 articles. Started in May 2001, it reached 100,000 articles on 8 March 2006, and 1,000,000 articles on 16 May 2013.
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Water supply and sanitation in Latin America is characterized by insufficient access and in many cases by poor service quality, with detrimental impacts on public health. [1] Water and sanitation services are provided by a vast array of mostly local service providers under an often fragmented policy and regulatory framework. Financing of water ...
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The Spanish approach to water stood in stark contrast to indigenous valuation of water and commitment of environmental protection. Primary sources reveal the Spaniards’ initial awe of the ingenuity and complexity of indigenous water systems, especially the construction of Tenochtitlan (now known as Mexico City), the capital city-state of the ...
Polo y servicio was the forced labor system without compensation [1] imposed upon the local population in the Philippines during the Spanish colonial period. [2] In concept, it was similar to Repartimiento, a forced labor system used in the Spanish America. [3] The word polo refers to community work, and the laborer was called polista. [4]