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API tugma biti IADC537 6,5 dyuym (165 mm) chegirmali narx bilan
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TCI tosh biti IADC537 7 1/2 ”(190 mm)
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API zavod tricon biti IADC537 7 5/8 ”(193,7 mm)
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TCI tricone bit IADC537 7 7/8 dyuym (200 mm)
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Volfram karbid qo'shish biti IADC537 8 1/2" (215,9 mm)
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API tugmachali tosh burg'ulash uchi IADC537 8 3/4" (222,2 mm) chegirmali narxda
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Qattiq toshli neft qudug'i uchun TCI matkap uchi IADC537 9 1/2" (241 mm)
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API tosh quduq burg'ulash bitlari IADC537 10 5/8 dyuym (269 mm)
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API uch konusli bit IADC537 11 5/8" (295 mm) qattiq quduq uchun
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Aylanadigan uch konusli bit IADC537 12 1/4" (311 mm)
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Metall muhrlangan Uzoq Sharq toshli burg'ulash uchi IADC537 13 5/8" (346 mm)
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API tricon matkap uchi IADC537 14 3/4" (374 mm) qattiq tosh uchun