The research history of electronic paper
The research of electronic paper and electronic Chinese ink is developed, already had taken 20 many year up to now. In 20 centuries 70 time, the company below Japanese pine published electrophoresis to demonstrate a skill abov...
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Inky of pen of painty ink ability in swimming is developed
One, introductive Can buy on market at present " be able to bear or endure pen of dye of ability in swimming ability in swimming " be production of 3 water chestnut company mostly. The pen of this kinds of ability in s...
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4 great skill teach you how stationery of safety of choose and buy
Student things installs countrywide mark to will be about to be carried out formally on April 1, as the parent you, how to know to identify, does the choose and buy learn articles for use safely? If your heart is medium,still...
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Intellectual role: Calculator history
[Hui Cong manages network of general articles for use] Speak of a calculator, those who be worth our pride is, the earliest computation tool is born in China. The tool of a kind of computation that Chinese ancient time use...
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Intellectual role: New-style function pen introduces
Environmental protection pen: Raw material comes from natural plant resource, the rice starch that use jade is made, litter does not cause any impact to the environment Mobile pencil: Pushbutton type is...
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The ball-pen that goes up except clothings opportunely is oily
Warm water of immerge of place of 1. general besmirch (40 ℃ ) use benzene or dip in with cotton group benzene rub is washed, wash with scour next, clear water (Wen Shui) strong clean. 2. soaks besmirch to be in with cold...
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Of children of stationery of cruel of fashionable individual character love most
To the parent, domestic home hopes children will have a bright future, look at female Cheng Feng, education grabs as a child, no matter the child has what kind of demand, can satisfy as far as possible. The eye of children is...
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Intellectual role: Stationery overview
Stationery is the floorboard of the culture things such as pen, Chinese ink, paper, inkstone. Contemporary paraphrase should point to the commonly used a few contemporary stationery inside the office: Sign pen, a stiff-haired...
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