He Nan Ruishi Investment Group Co.Ltd was established in 1992,through nearly 20 years high speed development, we have growth to assemble R&D, investment, deep-process, sales, import&export as the whole, involved abrsive, refractory, metallurgical material, solar photovoltaic material, machinery manufacturing etc multi-industry group company. Ruishi Group R&D Composite Fused Alumina through the newest type smelting industry technology, utilize the newest type environmental prote