Silicon nitride ball supply 1.588mm-50.8mm black silicon nitride ceramic ball

Silicon nitride ball supply 1.588mm-50.8mm black silicon nitride ceramic ball, US $ 0.002 - 0.003 / Piece, Building Material Shops, Manufacturing Plant, Machinery Repair Shops, EnergyMining, hardware accessories, Shandong, China, condar.Source from Yuncheng Kangda Steelball Co., Ltd. on Waimaotong.c