ʻO Guangzhou Hongwu Material Technology Co., Ltd.
Hoʻohui: R1603, Hale B1, Yunsheng Science Park, No.11, Guangpu Middle Road, Huangpu District, Guangzhou, Guangdong Province, Kina
Tel:8620-87226359;8620-87748917
leka uila:sales@hwnanoparticles.com
Skype & MSN:hkdongyang@hotmail.com
He aha ka polokalamu:17876573996
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