重口老太大和小伙乱,人妻去按摩店被黑人按中出 ,亚洲中文字幕无码专区,久久精品国产精品亚洲

1. The beam quality is good, close to the diffraction limit, so that more fine marking can be achieved;

2. Adopt optical fiber output, configure high-speed digital scanning head, marking speed is 2-3 times that of traditional models;

3. The electro-optical conversion rate is as high as 30%, and the power consumption is about 10% of traditional models;

4. Air cooling is adopted, and the whole machine is compact;

5. No consumables, maintenance-free, and long service life.

Metal components such as electronic components, hardware tools, electronic products, consumer goods, sensors, auto parts, crafts, precision equipment, gift accessories, medical equipment, high and low voltage electrical appliances, sanitary ware, etc. are marked with some non-metal materials.