Is Hanlong nba350 dual-function AC arc welding machine airless and shielded?

Yes According to Hanlong official website's information, Hanlong nba350 dual-function AC arc welding machine is airless and double-shielded welding, and Beijing Hanlong Management Consulting Agency is an NPO institution specializing in corporate culture management consulting services, with professional ability, extensive knowledge and rich experience in all aspects of corporate culture consulting.