We are Changzhou Longhai Welding Equipment Co.,ltd ,we produce CD and arc stud welder ,stud gun ,welding stud ,ceramic ferrule , insulation pin ,washer ,shear stud ,brazing pin ,pin brazing machine , al ball , welding nut ,milling cutter ,etc It is mainly used in steel and bridge construction ,boiler factory , and other stud welding project .ARC stud welder ARC-1600 I ,ARC-800,ARC-2000I ,ARC-2000,ARC-2500I ARC-2650 ,etc CD stud welder CD-1000I ,CD-1500I to welding 3-6mm and 3-8mm cd stud .Welding stud ,ISO 13918 ,AWS D1.1 ,Shear stud , Ceramic Ferrule ,etc Pin brazing , brazing pin ,pin brazer ,pin welding equipment .Cable lug for cathodic protection ,oil pipe line welding ,etc Contact :Kara Lin Skype czlhwelding cell:+86-1525192550czlhwelding at hotmail.com