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	HDL the first standard Intern..
	HDL the first standard Internet fiber optic hub for lighting control system ...

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	The Grand Theater of Jiangyin Tianhua Cultural Center, a multipurpose theat ...

	Optical DMX Ethernet Dimmer R..
	We take great pleasure to announce that On 23 Nov.2005, HDL got the CE cert ...

	Anhui TV Station turning into..
	Benefiting from its advanced technology and high quality service, HDL won a ...

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