4. Heat exchange
  5. With agitating or stirring structure

Qingquan Zeng

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Heat exchanger tube, a method for making the same, and a...

Heat exchange – With agitating or stirring structure
Reexamination Certificate

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Heat exchanger tube, a method for making the same, and a...

Heat exchange – With agitating or stirring structure
Reexamination Certificate

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Pyrolysis furnace with new type heat supply and method of...

Mineral oils: processes and products – Chemical conversion of hydrocarbons – Cracking
Reexamination Certificate

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