What's the power feed contacts?

The outface look like a red dates .small ,but so heavy ,i can't believe the little components is too heavy .power feed contacts is made by tungsten steel.the steel has a strong hardness ,density also so big .There are many kinds of shape round!

KENOS  is a prefessional  power feed contacts manufacturer in China,well known for good quality,competitive price and punctual delivery.Wellcome contact us !

jiannuoshi