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Method and apparatus for manufacturing aluminum sash in which hollow portion is filled with foam insulation, and method of controlling the apparatus
Method and apparatus for manufacturing aluminum sash in which hollow portion is filled with foam insulation, and method of controlling the apparatus
The present invention provides an apparatus for forming an aluminium chassis having heat insulating foam filled in a hollow portion, and more particularly to an improvement wherein the heat insulating foam is filled in the hollow portion of the aluminium chassis for windows and doors principally in order to improve an efficiency of heat insulation and sound absorption.
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