2012年3月27日星期二

Shaped Tungsten Needle

Generally speaking, tungsten needles are needles like small rod with the same diameter at the both ends. However, there are two special shapes, which are like tungsten needles with holes and tungsten needles with tips.

Tungsten needle with tips is processed with much more advanced technology and sheer difficulty. Tip of tungsten needle is shaped with the set angel, such as 23, 19 and so on. following is a picture to show the tipped or shaped tungsten needle.


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