Die-formed graphite rings are made of low-sulphur expanded graphite without any filers or binders. Die -formed graphite rings are compressed in precise moulding tools to the required density. It is made from the high purity of the material(>99%), no special corrosion protection is required. In general, die-formed graphite ring has square section and also has V-shaped and wedge-shaped section. Die -formed graphite ring are suitable for high pressure sealing

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