of the chinese prevention and control of solid waste pollution law ( ) (the chinese solid waste pollution prevention law ( )). however, article also provides that, if the foreign solid waste can be used as raw materials, it may be imported to china in certain circumstances. china, a top recycling destination...
expired hi guys........ can anyone please tell me how can i separate the tungsten carbide particles which are mixed in oil...... the mixture is also known as 'sludge' submit other answers - - : : filtration or centrifugation; as you want to separate the tungsten carbide form an oil, some washing of the solid...
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