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BORUSAN MANNESMANN

İstanbul
+90 212 393 58 00

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ERCİYAS BORU

İstanbul
+90 216 663 62 00

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İNKOR GRUP

İstanbul
+90 212 854 34 84

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PİPELİFE

İstanbul
+90 216 378 36 20

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POLİBOR

İstanbul
+90 212 671 0265