Mining explosives

Human and chemical relations are very close, spread to all aspects of life. In modern life, almost anytime, anywhere can not be separated from chemical products, from clothing, food, shelter, line and other material life to culture and the arts, entertainment and other spiritual life, need chemical products for service. Some chemical products play an epoch-making important role in the history of human development. Their production and application, and even represents a certain historical stage of human civilization.

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