hom 1.200 stearic acid nrog thawv ntim. 800 stearate, lined nrog lub hnab yas woven. Muab cia rau qhov chaw txias, hliv.
2. muaj tej thawv los yog woven hnab lined nrog rau ob lub hnab yas. Txhua lub thawv (lub hnab) nqa poob phaus 25 kg los sis 50kg.
3. muab khaws cia rau ib tug laj, qhuav, hliv chaw, saib kom deb ntawm cov qhov hluav taws kub thiab oxidant. Raws li ib qho tshuaj cia thiab tsheb thauj mus los.