kcf bushings,kcf guide sleeves

1)To weld bolts exactly to holes in panels
2)To project thread not being burned by electric current(Insulated protection)
3)Product Characteristic:High insulating resistance ,Super anti-abrasive capability,and Anti-oxidation at high temperature&Anti-thermal shock.
4)Each guidesleeve could weld 8000~10000pcs studs.
5)We could provide free samples to new customers for trial.
kcf bushings,kcf guide sleeves