Zhouguanda

Zhouguanda

640 W. California Avenue, Suite 210 Sunnyvale, California 94086www.topsentech.net

Topsen Technology is a world leading innovator and pioneer in graphene’s applications based in the United States. Since 2011,Website:http://www.topsentech.net, Our parent companies have developed several lines for massive production of graphene and its downstream products. Our application fields include anti-corrosion coatings,