
Non-conductive coatings on non-magnetic electrically conductive base metals—Measurement of coating thickness—Amplitude-sensitive eddy-current method
NORMA vydaná dňa 31.10.2025
Designation standards: GB/T 4957-2025
Note: K dispozici od: květen 2026
Publication date standards: 31.10.2025
Country: Chinese technical standard
Kategória: Technické normy GB