型號:HG57白色；
  硬度：邵A87；無(wú)填料；
  密度：0.60±2；
  適用于精密光學(xué)玻璃、藍寶石及半導體基板的高速或超高速拋光?？墒贡患庸すぜ馊Ω€定，不塌邊。各項性能指標與進(jìn)口LP57相似。
  產(chǎn)品主要規格有：640×640（mm）。產(chǎn)品厚度0.5（mm）~5.0（mm）。

  Type:HG57;white;
  Hardness:Shore A87±3;no filler;
  Density:0.60±2;
  It is suitable for high speed or even super high speed polishing precision optical glass,sapphire substrate and semiconductor substrate.It can make lens of processed part more stable and have no turned-down edge.All performance indicators are similar to imported LP57.