Spot needle features: 
 First, the good conductivity and high hardness 
 Particularly suitable for nickel-metal hydride, nickel cadmium, cell phone batteries, rechargeable lithium batteries nickel plate (with) and other metal materials 
 Welding 
 Second, with wear-resistant, long service life is ten times the domestic, non-stick welding, not black, solder joint appearance, etc. 
 Third, because volume is the minimum import prices, is to improve the quality and cost-optimal