1/4" 3/16" 1/8" Economical Bicycle/Motorcycle/Cycle Carbon Steel Ball for Sale Guangzhou Decok Steel Ball Co., Ltd. Base Info Description Pre：0.35mm 0.4mm 0.5mm 0.7mm 0.8mm Stainless Micro Steel Ball Next：Premiunm Selling! 1.5mm Thick Wall 500mm 250mm Half Sphere
