Min. Order Reference FOB Price
1 Piece US$0.10-1.00 / Piece
Product Description
ZYS Black Silicon Nitride Ceramic Grinding Ball Si3n4 ceramic balls 5.953mm for Ball Bearings Product Description The development history of ZYS silicon nitride ceramic balls: 1986-1990 Exploratory research on ceramic bearings 1991-1995 Preliminary Research on Ceramic Ball Bearings and Ceramic ...