The ceramic welding pins are made of silicon nitride ceramic material.It also can be made by other ceramic materials,such as grey zirconia,white zirconia,blue zirconia.Compare with zirconia ceramic weld pin,silicon nitride ceramic welding pins’ wear resistance and high temperature resistance are higher than zorconium oxide.Zirconia ceramic pin’s bending strength is better than silicon nitride ceramic pin.Ceramic material and welding pin drawing could be customized.