... EN, ISO, ANSI/ASME, and JIS standardField: Metal working / Construction / Shipping yard / Wind tower industrial and so on.Standard: ISO13918, AWS ... here - With large work capacity and high quality control, ISO ,CE certified.- With high reputation in the and bolt and stud field, ... are available. Welders can also be automated, with controls for arcing and applying pressure. Stud welding is very versatile. ...