Rasps

• Boil the old files or rasps in this solution for half an hour. 威廉K.戴维. 智者、化学家和伟大医生的秘密.
• Rasps are files which have isolated sharp teeth separated by comparatively wide spaces, and are chiefly used for soft materials such as wood and horn. 佚名. 神奇的知识之书.

布赖恩特编辑