BD輪系列（熟稱泥巴輪，又稱紅粉輪）適用于各種玻璃周邊拋光，和拋光粉共用拋光效果更好。   Zhe picture shows the BD polishing wheel series (usually called 'mud wheel' and 'red powder wheel'). BDwheel can be used for all kinds of  glass peripheral polishing. BD whells can achieve better polishing effect when used with polishing powder.