ตัวกรองผลการค้นหา
Screen (or Sieve)
แปลว่า(Concrete Engineering) A metallic sheet or plate, woven wire cloth, or similar device, with regularly spaced openings of uniform size, mounted in a suitable frame or holder for use in separating material according to size.
emery-cloth
แปลว่าผ้าทราย
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
fine emery cloth
แปลว่าผ้าทรายอย่างละเอียด