ผลการค้นหา

corundum

แปลว่าแร่โลหะชนิดหนึ่งแข็งรองลงมาจากเพชร

Oriental topaz

แปลว่าหินแร่จำพวก Corundum มีสีคล้ายพลอย, บุษราคัม

Abrasive 2

แปลว่า(english) Natural – sandstone,emery,corundum,diamonds, or Artificial – silicon carbide,aluminum oxide – material used for making grinding wheels,andpaper,abrasive and lapping compunds.

Abrasive 1

แปลว่า(english) Material for grinding, polishing, blasting, either in loose form or bonded to form wheels, bricks, or files, or applied to paper and cloth by glue or resin. Natural abrasives include emery, corundum, garnet, sand, flint, etc. Metallic shot and grit are also used as abrasives in cleaning castings