Technical suppliers or technical service providers, that is to say, from Party A to Party B.There are many kinds of Party B in this industry, including private enterprises, joint ventures, foreign ent..

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The workers' holidays are coming! Although the state has a fixed holiday, but there is such a group of workers, they still have no holiday, stick to the post, the following small editor to lead th..

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8 (M3) kg /t, coke 400kg/t.NO.7 hydrocyanic acidHealth hazards: inhibition of respiratory enzymes, resulting in intracellular asphyxia. Acute poisoning: inhaling high concentration of hydrogen cyanide..

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