Responsibility: 1) Preparation of polishing powders, including solution preparation, precipitation, calcination, crushing and grinding, washing and drying; 2) Characterization of finished polishing, including measuring particle size distribution, sedimentation, and polishing powder performance; Requirements: 1) Working time: at least 3 working days/week 2) Education level: Bachelor student or above 3) Skill & technical competence: MS-Office software 4) Language requirement: Excellent both in oral and write English 5) Essential behavior competence: good communication skill, responsible, active |