HENG KAI DEVELOPMENT LIMITED
HENG KAI DEVELOPMENT LIMITED Patent applications | ||
Patent application number | Title | Published |
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20140127636 | Energy Efficient Furnace with Coaxial Segmented Center Hearth and Multiple Combustion Stages with Regenerative Heat Return - Disclosed in the present invention are a combustion furnace with coaxial staged hearth and heating method thereof, in which the combustion furnace comprises a metal furnace body ( | 05-08-2014 |