18307 Hybrid Ceramic Bearing 18x30x7 mm ABEC-1 1PCBicycle Bottom Brackets & Spares 18307RS Si3N4 Ball Bearings 18307-2RS

High-concerned chemical：None Model Number：18307 18*30*7 mm Hybrid Ceramic Bearing Brand Name：FUSHIPRO Origin：Mainland China

High-concerned chemical: None Model Number: 18307 18*30*7 mm Hybrid Ceramic Bearing Brand Name: FUSHIPRO Origin: Mainland China