Is: 777 - 1970 (With Amendment No.2 - 1982); Specification For Glazed Earthenware Tiles
Indian Standards Institution
Is: 777 - 1970 (With Amendment No.2 - 1982); Specification For Glazed Earthenware Tiles - BIS 1971
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Is: 777 - 1970 (With Amendment No.2 - 1982); Specification For Glazed Earthenware Tiles - BIS 1971
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