Composite thermal insulation board
The utility model provides a composite thermal insulation board, it is including two -layer metal sheet and two -layer extrusion molding formula polystyrene heated board, two -layer extrusion molding formula polystyrene heat preservation plate holder is two -layer it is between the metal sheet, two...
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Format: | Patent |
Sprache: | eng |
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Online-Zugang: | Volltext bestellen |
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