Yuav ua li cas sharpen cov hniav ntawm lub lamb slicing tshuab

1. Muab cov hniav tso rau ntawm qhov chaw sib tsoo ntawm qhov sib tsoo kom nws tsis khiav thaum lub sij hawm sib tsoo.

2. Ntxiv qhov tsim nyog ntawm dilute lubricating roj los yog kua paraffin rau saum npoo ntawm grindstone thiab so nws tusyees kom qhov sib txhuam ceev.

3. Txhim kho cov riam tuav thiab rab riam rau ntawm lub slicing riam kom lub riam ntug yog nyob rau hauv pem hauv ntej thiab nteg nyob rau hauv lub grindstone nto.