Recently, the State Intellectual Property Office issued CN2730796 bulletin. The “dust-proof and portable drinking cans” invented by Li Mu, a 9-year-old student of Weiyang Experimental Primary School in Yangzhou City, obtained a national utility model patent. Li Mu, who is in the fourt

First, poor printing ink transfer Phenomenon: The printing ink is in the transmission, and the transfer ink is difficult to produce and the ink is inaccurate. Reasons: insufficient or uneven printing pressure; poor plate hardness; ink roller, anilox roller wear, aging; ink and substrate are incom

1 wipe the stained leather sofa with egg white Use a clean flannel to wipe off some of the egg whites to remove stains and make the leather surface shine. 2 wipe the refrigerator casing with toothpaste The general dirt on the outer casing of the refrigerator can be wiped wi

Li Ping Beijing National Culture and Art Vocational School Beijing 100062 The teaching equipment of the Beijing National Culture and Art Vocational School (hereinafter referred to as the National Arts School) is an important material basis for school teaching and scientific research, reflecting t

Based on experience, the author analyzes the causes of wrinkling in the printing of books and publications as follows. First, paper problems cause wrinkling of printed products 1. uneven distribution of paper moisture content: if the surrounding water content is greater than the middle part (tha

Model NO.: C-522 Rotary: Fixed Customized: Non-Customized

The World Health Organization has released the "Guidelines for Indoor Air Quality", the first time that WHO has published quantitative standards for indoor toxic substances. Experts believe that this provides a scientific basis for the development of indoor environmental standards around

If you don't want a girl with too strong makeup, you can use nude makeup to express it. In addition to the thin and flawless skin, choose a monochrome makeup , stacking in layers to show the overall texture, the earth color will be the best color. You can create a perfect picture of a beautiful

Abstract: A method for the determination of Pb in sediments by atomic fluorescence spectrometry combining suspension sampling with hydrogenation was studied. Control the particle size of the suspension to be less than 0.088 mm, stir with a magnetic stirrer to ensure that the suspension is evenly a

Refractive screen printing technology, which has emerged in recent years, is a new star in the packaging screen printing family. The traditional refraction effect is generally to first make a copper-zinc plate with a refraction texture, and use a round press or a flat press letterpress to press li

According to the new data from China Customs, from January to December 2010, the cumulative import of paper and cardboard in China reached 3.31 million tons, an increase of 0.2% over the same period of last year (the number of imported paper and cardboard from January to December 2009 was 3.31 milli

The electronic whiteboard with the principle of laser tracking often has the problem that the handwriting written on the whiteboard cannot be displayed due to the improper use of the electronic pen and the eraser. So how do we use the electronic pen and eraser correctly? Improper use method is ea