... “well-known trademark of China”, Tangshan Hexiang Group Co., Ltd, consists of Tangshan Hexiang Zirconium silicate Plant, Ceramic Machinery ... Lingxiang Commerce & Trading Co., Ltd, Tangshan Hexiang Refractory Materials Co., Ltd., Tangshan Hexiang Import& Export Co., Ltd.,In 2002, company authorized ... one of the tech-enterprises that key-protected by Tangshan government, we have been awarded, for 3 years ...