Ntim
Cov graphite nthuav dav tuaj yeem ntim tau tom qab dhau kev tshuaj xyuas, thiab ntim khoom yuav tsum muaj zog thiab huv si.Packing cov ntaub ntawv: tib txheej hnab yas, Txheej yas ntim lub hnab. Qhov hnyav ntawm txhua lub hnab 25 ± 0.1kg, 1000kg hnab.
Kos
Cov cim lag luam, cov chaw tsim khoom, qib kawm, qib, pawg lej thiab hnub tsim khoom yuav tsum luam tawm ntawm lub hnab.
Thauj
Lub hnab yuav tsum tiv thaiv los ntawm nag, raug thiab tawg thaum thauj.
Cia
Yuav tsum muaj lub tsev rau khoom tshwj xeeb. Cov qib sib txawv ntawm cov khoom yuav tsum tau muab cais ua ib pawg, lub tsev rau khoom yuav tsum muaj qhov cua nkag tau zoo, tsis muaj dej tsis haum.