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  • Dec 25
    2018
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    2018
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    2018
  • 1. The surface of the workpiece to be engraved must be clean and dry to ensure good contact.
    2. After selecting the color you need, fix the ground clamp to the workpiece and turn on the power.……
    Jul 25
    2018
  • The difference between neutral ink and general ink is that it is not only fluent, but also has a certain lubricity. The addition of lubricant reduces the friction between the ball and the seat, minimizing kinetic energy for a more comfortable writing……
    Jul 25
    2018
  • In addition to the advantages of the oily ballpoint pen and the water-based ballpoint pen, the gel pen is required to have the following quality indicators.……
    Jul 25
    2018
  • The lithium ester is an organic material located at the end of the gel pen for sealing the neutral ink in the ink tube. The conventional oily ballpoint pen can be filled with no lithium ester, because the oily ballpoint pen ink is a hardly volatile s……
    Jul 25
    2018
  • The gel pen, also known as the pen, originated in Japan and is a novel writing tool popular in the world. According to the type of pen type, ink color, structure, etc. can be divided into different types of gel pens, you can choose according to your ……
    Jul 25
    2018
  • The high-grade ballpoint pen has obvious trademark grades and model marks on the pen holder. There are also obvious grades, production date and “DA” mark on the tail of the refill (the “DA” mark is the first Chinese pinyin of the file. Combination of……
    Jul 25
    2018
  • The ball beads used are mostly made of stainless steel or cemented carbide. The size of the ball diameter determines the thickness of the line of the handwriting. Common ball diameters are 1 mm, 0.7 mm, and 0.5 mm (often written on the pen or ball re……
    Jul 25
    2018
  • Also known as a ballpoint pen or a ballpoint pen. The pen holder and pen holder of the ball-point pen are made of plastic injection molding, which is called a full-plastic ball-point pen. The pen-set is made of stainless steel and is called a semi-st……
    Jul 25
    2018
  • The pen is more durable than the general pen, but if it is used improperly, it can't be written. This is mainly because the dry solid ink sticks around the steel ball to hinder the ink from flowing out. Ink is a viscous oil which is prepared by using……
    Jul 25
    2018
  • The writing principle of the ballpoint pen mainly uses the ball to directly contact the paper surface during writing to generate friction, so that the ball rolls in the ball seat and brings out the ink or ink in the pen core to achieve the purpose of……
    Jul 25
    2018
  • The ballpoint pen is a writing instrument that uses dry thick ink and relies on the freely rotating steel ball on the pen head to be transferred to the paper. It has the advantages of simple structure, convenient carrying, writing lubrication, and su……
    Jul 25
    2018
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