| 產品規格︰ | In Chinese acient time, people used two methods to calculate the time,
One is sand timer, another is clepsydra.
This is our great nations inventions
Now in modern ages, people is more clever, they used our sand timers to help calculate the duration of brushing their teeth, it is said that, dentist's advice is that the best period of brushing your teeth is 3 minutes. |
| 產品優點︰ | we have many kinds of materials, such as wood, plastic and glass
the time is precise
we can make new molds |
| 主要市場︰ | worldwide |
| 參考單价︰ | negotiable |
| 付款方式︰ | prepay |
| 最小訂量︰ | 1000pcs |
| 交貨日期︰ | 10days |
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