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benzyl chloride and its derivative preparing process
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A kind of compound wastewater treatment agent and preparation method thereof
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A kind of garbage disposal centrifugal pretreatment disintegrating apparatus of small single-chamber
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A kind of rotary extrusion type spinning filter plant that garbage disposal is recycled with waste liquid filtering
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A kind of microorganisms in water original-position collecting device
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A kind of high-COD waste water treatment zero draining technique with high salt and device
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A kind of high-salt wastewater low-temperature evaporation crystallization processes and device
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