Product Name
Aluminum material high speed bearing sleeve for skateboard
class
4.8 6.0 8.8 12.9,etc
material
Stainless , Steel, Brass, Bronze, Iron, Aluminum, Alloy , Titanium
specification
Plain, Yellow zinc, black phosphated, grey phosphated, nickel plating
standard
GB,GB/T,DIN,JIS,BSW,ANSI,ISO & non-standard products