Powder coatings yog cov hmoov hluavtaws cob coatings uas muaj cov khoom resins, pigments, fillers thiab additives.Thiab zoo tib yam hnyav-raws li txheej thiab dej-raws li txheej sib txawv, nws qhov nruab nrab dispersion tsis hnyav thiab dej, tab sis huab cua.Nws muaj cov yam ntxwv ntawm tsis muaj kuab paug paug, 1 ...
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