Due to extremely slow speed, should select a very fine abrasivepowder to extract the coffee.
由于速度极慢，应选取研磨得极细的咖啡粉来萃取。
2
For cleaning, please do not use the abrasive cloth, abrasivepowder, hard brush or any tool that can scratch this product.
清洗时请勿使用菜瓜布、磨沙粉或硬毛刷等会刮伤本产品的工具。
3
Natural or artificial abrasivepowder or grain, on a base of textile material, of paper, of paperboard or of other materials, whether or not cut to shape or sewn or otherwise made up.