... Precipitation Alumina Trihydrate,kingway chemicals,CHALCO,high whiteness Aluminium filler,ultra fine Aluminium hydroxide,Amorphous alumina,Trihydrated Alumina, ... Aluminium Hydroxide Dried Gel,Aluminium Trihydrate,ATH,surface coated ATH, H-Wf-1st ... ultra fine, and also coated by Silane or Stearic Acid.Particle size D50:90um, 75~90um,50um,25um,20um ...