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Our co***ny , a high-tech enterprise with independent import and export rights,is authorized by Hebei Hengtong Import & Export Group Limited. We are a comprehensive large enterprise including scientific research, manufacture, processing, international trade and domestic trade in one. The main product in our co***ny is mercury (Hg) 99.999%, which have passed though the ISO9001 international quality authentication and ISO14001 international environment certification. Our co***ny has been cooperating w...
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