... Polishing pad can be called Polishing cloth, Abrasive pads, Polyurethane polishing piece, Cerium pads, Cerium oxide pad, etc. It can substitute for ... etc.(2) LDU yellowIt is made of pure polyurethane, no abrasive material content, it is more rigid than LD66/77, ... , crystal semiconductor material etc.(3) LD26 PinkIt contain zirconia abrasive, usually be used to polish the surfaces of high hardness ...