Non-asbestos manhole gasket We will manufacture heat resistant cloth inserted rubber gaskets using precision cutting as request.Manholes for exhaust gas,hot air passage,etc. autoclaves and large bore flanges. Diesel engine exhaust pipe,flue manhole,boiler combustion port.ClothGlass fiberCeramic fiber + SUS wireHeat-resistant temperature 400600Color tone GrayYellowSmoke emission 25% or less20% or lessHardness/softness EvaluationSoftSoftCompression      (Contact pressure 5.9 mp)5970Stiffness EvaluationStrongWeakDeflection      (20mm x 20mm under its own weight)1836Tensile strength EvaluationStrongWeakTensile strength      (one piece of cloth)47N9N