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Uploaded by wchao38 on Oct 25, 2009
不管是捲門或是摺疊門,都須具備安全防壓才可以,不然真的很危險,尤其現在的市場需求,門要走的快,每秒都要10~15公分,在很多時候是很方便,但相對的危險性也增加.因此在安全防壓的設計上,格外的重要.
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