Operating since 2001
Mainland Mineral and Refractory Co. Ltd (MMR) is a private owned company, located in Tianjin, China. As a professional refractory exporter and mineral processor, MMR had been concen [Details]
Mainland Mineral and Refractory Co. Ltd (MMR) is a private owned company, located in Tianjin, China. As a professional refractory exporter and mineral processor, MMR had been concen [Details]