products
product yield：3000mt / year
producers：jining canal emery co.,ltd.
physical and chemical indicators: implementation of standards（gb/t7986-2001）
| item | unit | value |
| al2o3 | % | 44.0-49.0 |
| zao2 | % | 33.0-39.0 |
| sio2 | % | 16.0-19.0 |
| particle size | mm | 0-0.212 0.212-0.59 1-3 |
