... fiberglass packing reinforced with SS or Nickel wire and lubricated by graphiteApplicationAs a static seal for vessels, heaters, manhole, lids, covers ... and resistant to water, steam, hot air, oils and so on. QS2021 can be used for pumps & valvesParameterTemperature: up to 600 ... : 5~9Packagingin coils of 5 or 10 kg, other weight on request by CTN