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Welding and valves officially became joined at the hip with the perfection of the arc-welding process in the late 1920s. Up until then, every component in valve was made of solid, homogeneous material, and all the end connections were either threaded or f
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Valve experienced in the financial crisis era of the world economy is gradually restored, the same mechanical and electrical products in Chinese import and export market is also gradually steady growth, the valve industry will become more intense to the i
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Oil wells drilled horizontally through hydrocarbon-bearing formations are often among the most prolific oil wells in the U.S.A. Although modern horizontal drilling achieved commercial success in 1980s, drilling techniques have improved this years, so in r
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Access to drinking water has been one of the biggest successes of the United Nations’ Millennium Development Goals,it report said ahead of World Water Day on March 22, but for 747 million people around the world, just obtaining this essential service rema
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Paralyzing drought and environmental impacts on water supplies across the U.S. sunbelt—from Florida to California—has thrust waste water reuse into the spotlight as a critical solution to minimize long-term risks to state water supplies.