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Beijing Guohua Technology Group Co., Ltd

Add: No. 9 Longyue Street, Mapo, Shunyi District, Beijing

Phone：010-53397669

Email：[email protected]

Tangshan Guohua Technology Co., Ltd

Add: No. 88 Xinke Street, High tech Zone, Tangshan City

Phone: 0315-5913666 (domestic)+1-304-960-1190 (foreign)

Email：[email protected]