GB/T 20671.6-2020 Classification system and test methods for nonmetallic gasket materials—Part 6: Standard test method for adhesion of gasket materials to metal surfaces
2020GB/T 20671.6-2020 Classification system and test methods for nonmetallic gasket materials—Part 6: Standard test method for adhesion of gasket materials to metal surfaces
2006GB/T 20671.6-2006 Classification system and test methods for nonmetallic gasket materials-Part6:Standard test method for adhesion of gasket materials to metal surfaces