Graphite yarn to be used for making different kinds of braided graphite packing. we use xpanded graphite as basic material mixing with natural fiber, synthetic fiber, metal alloy wire and proper binding agent, then through specially designed technological process. The braided packing made of these expanded graphite yarns reinforced with different kinds of fibers and metal alloy wires, are suitable for sealing under different media, circumstance, temperature and pressure. Furthermore, for using these products under severely corrosive circumstance upon the demands fo customers, inhibitors of corrosion can be added into the graphitethe graphite yarns for making the properties of the graphite sealing parts more perfect.