IS: 3951-Part 1;Specification for hollow clay tiles for floors and roofs Part 1;Filler type
BUREAU OF INDIAN STANDARDS
IS: 3951-Part 1;Specification for hollow clay tiles for floors and roofs Part 1;Filler type - NEW DELHI BIS 1975 - 9
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IS: 3951-Part 1;Specification for hollow clay tiles for floors and roofs Part 1;Filler type - NEW DELHI BIS 1975 - 9
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