Marking metal materials with optical fibers
Non-metallic materials are labeled with carbon dioxide
Ultra-fine products use ultraviolet light.
According to the general reading machine, the demand for building main target is 0-100 w.
If you pursue the price, you can buy one on Taobao for about 6.5438+0 million yuan, but it is estimated that it will not take long.
In pursuit of brand quality, it will be more expensive to choose first-line brands such as South China University of Technology, Han nationality and Trumpf, but the quality stability effect is good.
I bought the h-smart of South China University of Technology.