Structure Description:Equivalent to John crane type 1BPerformance Capabilities:Temperature: -20℃ to + ... , Silicon Carbide Sintered Pressureless, Ni-binder Tungsten Carbide, Co-binder Tungsten CarbideRotary Ring: Resin Impregnated Carbon Graphite (Furan ... , Silicon Carbide Sintered Pressureless, Silicon Carbide Reaction Bonded, Co-binder Tungsten Carbide, Ni-binder Tungsten CarbideSecondary Seal: Nitrile ...