Anhui Province Ningguo Xinning Industry Co.,Ltd. is a professional large-scale manufacturer in providing various of casting grinding media(the high/low chrome alloy casting balls & bars),casting grinding ball/bar's mould,casting grinding ball equipments(full automatic production line,advanced heat treatment equipments and integrated equipments).The company was established in January 2002 ,with an area of 150,000 square meter,located near Shanghai,thus we enjoy convenient water,land and air ...