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Basic concept Atmospheric and vacuum distillation is the collective name for atmospheric distillation and vacuum distillation. It is basically a physical process: the raw oil is divided into oils with different boiling point ranges (called...
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The structure and working process of dry evaporator The refrigerant of the dry evaporator passes through the heat exchange tube, and the cold water runs outside the high-efficiency heat exchange tube. The heat exchange efficiency of such a heat...
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With the advancement of economic globalization, international trade has become more frequent, and various international standards have gradually become a consensus among global industries. In the steel industry, Russian standards are widely...
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According to different production methods, it can be divided into hot-rolled tubes, cold-rolled tubes, cold-drawn tubes, extruded tubes, etc. 1. Hot-rolled seamless pipes are generally produced on automatic pipe rolling units. The solid tube blank...