TS 2676-1977 ANODIZING OP ALUMINIUM AND ITS ALLOYS - ASSESSMENT OP SEALING PUALITY BY MEASUREMENT OF THE LOSS OP MASS AFTER IMMERSION IN PHOSPHORIC - CHROMIC ACID SOLUTION
1977TS 2676-1977 ANODIZING OP ALUMINIUM AND ITS ALLOYS - ASSESSMENT OP SEALING PUALITY BY MEASUREMENT OF THE LOSS OP MASS AFTER IMMERSION IN PHOSPHORIC - CHROMIC ACID SOLUTION