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line and compressor station construction oil and gas pipeline construction oil equipment rental services oil field contractors oil field equipment oil field equipment, rental or leasing oil refinery construction oil well drilling equipment, rental or leasing oil well equipment and supplies rental oils-asphalt...
unde... view more vinyl sulphone based dyes vs dyes are widely used for exhaust dyeing. they react chemically unde... view more 'h' dyes 'h' dyes have low reactivity and needs a slightly hi... view more 'p' dyes 'p' dyes have low reactivity and needs a slightly hi... view more 'me' dyes many of the...
due to incomplete carbonization, or during the activation process, foreign non-carbon elements are chemically combined with the surface of activated carbon; another type of admixture is ash, which is the inorganic part of activated carbon. ash is liable to cause secondary pollution in activated carbon...
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