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

Location:Home  >  Application  >  Laser welding
Cylindrical metal laser welding
Detailed Description
The principle of laser welding is to radiate a high-intensity laser beam to the surface of the metal. Through the interaction of the laser and the metal, the metal absorbs the laser light and converts it into heat energy to melt the metal and cool and crystallize it to form a weld.
Recommended Models

Online

Online

Tel

Manager Wen: 18902563402

QQ

QQ/p>

Wechat

Scan and follow
Fulan Public Account

Back
Top