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采購中(zhōng)性筆注意的幾個技術細節
(2016/4/15)

Need to pay attention to some of the technical details in the procurement gel pen, neutral advertising pen the shallow visual interpretation of things, in fact, if the real truth, Oh, estimated to be able to write a book:
1. Nib.
The nib in diameter. Asians like beads of a diameter of 0.5 mm or smaller. European and American Portrait large diameter beads.
The bead material is tungsten carbide, stainless steel, and ceramic. Comprehensive performance is tungsten carbide.
Ball valve seat material. Nickel - copper - nickel alloy, stainless steel, brass. From the overall better performance of the stainless steel. Easily rust copper, nickel, copper, nickel alloys, nickel content is many manufacturers, and therefore require special attention.
2. Ink. Gel pen ink technology is not mature, the problems in the storage, processing and transportation process, prone to all kinds of problems. So be careful. Using a variety of methods to test write. Gel pen manufacturers in addition to other factors to determine. Such as the bubbles in the ink is very obvious, and the manufacturer and is not well controlled. In addition to a cup, together, gel pen ink manufacturers height of 5-10mm deviation is reasonable, if exceeded, would advise you not to buy.
3. Final plug crude. Mineral oil refining and refined. Petroleum refining is generally colorless, transparent, generally less impurities, and better performance than the yellow tail plug oil. By writing to judge, tail plug oil can be a good follower, which is very important.
4. Tube. Profiteers have always done very fine internal diameter of the pipe. Therefore, the ink seems that many. Some profiteers simply think that consumers, I will not pay attention to the filling volume. Pay special attention to. Domestic suppliers of everyone, they compare the standard of the refill tube, can refer to.
5. Rubber ball. Sealed nib rubber ball, and we do not underestimate this little thing. Otherwise, Loumo dry ink complaints will accompany you. The depth direction, a check is made to see if we really can be tightly sealed. Moreover, certainly better flexibility of the rubber ball.
6. December balls. Rebound gel pen wax ball, Note that if you come off easily.


 
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