
BS 3900-H1 - METHODS OF TEST FOR PAINTS - EVALUATION OF DEGRADATION OF COATINGS - DESIGNATION OF QUANTITY AND SIZE OF DEFECTS AND OF INTENSITY OF CHANGES - GENERAL PRINCIPLES AND DESIGNATION SYSTEM
出版:British Standards Institution

專家解讀視頻
BS 3900-H1 - METHODS OF TEST FOR PAINTS - EVALUATION OF DEGRADATION OF COATINGS - DESIGNATION OF QUANTITY AND SIZE OF DEFECTS AND OF INTENSITY OF CHANGES - GENERAL PRINCIPLES AND DESIGNATION SYSTEM
出版:British Standards Institution
專家解讀視頻