PYUNGWHA PIPE INDUSTRY INC.
Chicago, IL US
PYUNGWHA PIPE INDUSTRY INC. Patent applications | ||
Patent application number | Title | Published |
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20150323105 | PIPE HAVING RESISTANCE TO BOTH FIRE AND COLD - The present invention relates to a pipe having resistance to both flame and cold, where the pipe has good flame resistance to prevent flame or smoke from spreading through the pipe penetrating into the floor or wall in the case of a fire and also has good smoke resistance to prevent deterioration in the physical properties of the pipe even in the cold weather. | 11-12-2015 |