Street Address :
Room301 Unit3 Building25 FuXin HuTangXi
City : YiWu
Province/State : ZheJiang
Country/Region : China
Sand timers/Hourglasses
An hourglass, also known as a sandglass, sand timer, sand clock or egg timer, is a device for the measurement of time. It consists of two glass bulbs placed one above the other which are connected by a narrow tube. One of the bulbs is usually filled with
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