1.Lub thickness ntawm lub cua sov raj phab ntsa yog nyias nyias, cov khoom xaiv tsis ncaj ncees lawm los yog qhov tsis zoo, kev siv cov kav dej seam. Qhov dav dav ntawm cov yeeb nkab phab ntsa yog 0.8 units, thiab yog tias nws nyias dhau lawm, nws yuav ua rau muaj kev cuam tshuam rau sab nraud quab yuam lossis kev puas tsuaj thaum siv.
2.Yog tias cov hmoov magnesium oxide nyob rau hauv lub tshuab hluav taws xob lub tshuab hluav taws xob yog damp, nws tseem muaj peev xwm tawg.
3.Lub zog ntawm cov khoom cua sov yog siab dhau lawm, qhov chaw thauj khoom loj dhau, thiab qhov kub thiab txias sab hauv yog siab dhau, uas yooj yim rau kev nthuav dav sab hauv, ua rau lub raj tawg.
4.Muaj ntau hom magnesium oxide hmoov, qhov zoo tshaj plaws yog hloov magnesium oxide hmoov nrog kub tsis kam. Yog tias siv cov hmoov magnesium oxide tsis zoo, thaum lub tshuab rhaub hluav taws xob ua haujlwm, qhov kev nthuav dav sab hauv kuj yuav tshwm sim, ua rau lub raj tawg.
5.Cov khoom siv sab nraud ntawm cov khoom siv cua sov tuaj yeem yog cov raj nyias nyias, los yog nws yuav yog lub raj seam, uas ua rau tawg yooj yim.
6.Cov dej uas siv rau cua sov yuav yog cov dej hauv av, los yog cov dej kais dej, nrog cov impurities ntau dua, yooj yim rau scale, cov nplai ntau dhau yog tuab heev, uas yuav ua rau lub hauv paus kub ntawm lub rhaub dej tsis tuaj yeem diffused, ua rau tawg.
