מקום מוצא
Zhejiang, China
Color
Customizable colors
Packing
Neutral Packing or Custom Packaging
Balls
Quality Si3N4 Ceramic Ball
Si3N4 Ceramic Balls
High temperature resistance is 50% lighter than steel balls
Nylon card
DuPont nylon card
Seal/dust card
Rubber or steel seal, single side seal.
Product name
HRC hardness Si3N4 Black ceramic skateboard bearing