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PCB engraving machine on Yang Wen sand introduction
Department of Yang engraved, as with fine sand, sand like, coarse sand, walnut, citron to (an orange peel to) etc..
A thin printed
It has three meanings;
PCB engraving machine understanding one refers to Wu Luzhen of the Qing Dynasty carved bas relief, carved in high relief of the shallow in the Ming Dynasty, hence the name "thin Yin wen". One that is Wu Luzhen bas relief lower intaglio. The so-called "thin Yin Wen," neighbor will markings outside full bamboo or bamboo near markings near to scrape the markings, gently rises up, and then carved.
In depth
A deep, deeper than usual. Bamboo surface optical element, called the carved picture, all carved depression, has five or six layers, has achieved the most deep place, named "in depth". It began in the early Qing dynasty.
Bamboo carving pattern
The pattern of four; a light, i.e. the ground. The vacancy, namely the openwork carving of Lou vacancy. Three as many lines, such as Lei Wen, corrugated, ripple, brocade etc.. Four for rough, namely sand, PCB engraving machine understanding its to the shape name. Lines cover, ground bearing lines, for the lines and auxiliary.