please to quote for stainless steel ball, type 304 , grain size : 3- 5 mm, ( it is blend of 3,4,5, mm) used for polishing aluminum spare parts in vibrators contains polishing compound 请报不锈钢球，304材质，粒度(尺寸)：3-5毫米，（3、4，5毫米混合）用于振动容器里抛光铝件 联系：396277228 注明：不锈钢球 谢谢
