SiLiBeads® M-type Glass Bead, Art.5000 Soda Glass Solids, PbO-Free!, Φ1.5~18 mm Use ; “Mixing Beads in Aerosol Spray?Boiling Stones?Filler of Distillation Column or Distillation Tower?Grinding Ball?Valve Ball?Surface Treatment Agent, etc” 글라스 비드, “믹싱 비드?비등석?증류 칼럼/탑 충진제?연마용볼?볼밸브?표면처리제, etc