... Manufacturer more than 14 years experience Hight quality with ISO9001 High quality LD66 polyurethane polishing pad with grooves 1. IntroductionPolyurethane polishing pad LD66 ... mm): Sizes1400×580, 1400×640, 1400×700, 1600×800, 1800×900, 2200×1100, 2400×1200, 2600×1300Thickness0.5, 0 ... silicon, germanium and other single wafer of semiconductors. High quality LD66 polyurethane polishing pad with grooves