
Classification system and test methods for nonmetallic gasket materials—Part 4:Test methods for sealability of gasket materials
NORM herausgegeben am 30.7.2026
Designation standards: GB/T 20671.4-2026
Note: Execute Date: february 2027
Publication date standards: 30.7.2026
Country: Chinese technical standard
Kategorie: Technische Normen GB