BPI
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BPI ASTM D6400 ئۈچۈن D300 - 03
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BPI ASTM D6400 C200 - 01
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BPI ASTM D6400 C200 - 02
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BPI ASTM D6400 D200 - 01
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BPI ASTM D6400 D200 - 02
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BPI ASTM D6400 D300 - 01
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D300 - 02 ئۈچۈن BPI ASTM D6400
