Product introduction Various materials compression gland packing ring Braided from low-sulphurexpanded graphite yarns , which is reinforced by cotton or glass fiber. It has a very low friction , does not damage shafts or stems .Gauge Glass, Glass Tube, Level Gauge, Quartz Glass, Sight Glass It shows good thermal and chemical reistance and high elasticity . can provide glass fiber , nickel wire , copper such as enhanced. May use with carton packing anti- extrusion packing rings .…