... 20 working days 10000-200000pcs11.Customized design is welcome12.Sample charge: USD100 and will ... little transparent, change color fast speed. Next is patedure, Strengthen porcelain, Stoneware ect. Choosing magnesia ... metal content. Standard within qualified, standard outside is unqualified. By acetic acid immersion, test cup ... commodity inspection. Glass mug is no need. travel mug with color changing