... odorless, non-polluting, easy to use, 3 inexpensive and safe Garnet Abrasive1.pore-forming materials] walnut shell particlesOur factory using foreign ... :shiny ,beautiful, brown. High-quality fruit (coconut, apricot) shell as raw materials, it is refined handled and screening made by water ... spectecles, jewelry, button, stamping parts, electronic parts, etc. High quality garnet Abrasive