This standard specifies the model, technical requirements, test methods and inspection rules of polytetrafluoroethylene braided pa

This standard specifies the test equipment, sample specifications and shapes, test procedures and calculation methods for the test

This standard specifies the equipment, sample procedures and result calculation for testing the Shore hardness of flexible graphit

JB/T 6623-1993 Determination of sulfur content in flexible graphite sheets JB/T6623-1993 Standard download decompression password:

This standard specifies a method for determining the chlorine content of flexible graphite sheets using the combustion-mercury thi

This standard specifies the determination method of the linear expansion coefficient of flexible graphite sheets. This standard is

This standard specifies the test method, test steps and result calculation for testing the performance of flexible graphite braide

JB/T 6619.1-1999 This standard is a revision of ZB J22 005-88 "Technical Conditions for Light Mechanical Seals". During the revisi