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- http://www.grandinnovation.com.tw/contactus.php (30 Jan 2019)
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+886-4-2422-1300
http://www.grandinnovation.com.tw/contactus.php (30 Jan 2019)
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+886-4-2422-1381
http://www.grandinnovation.com.tw/contactus.php (30 Jan 2019)