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Nc38 Thread Slick Drilling Collar dalam Persediaan
6 inci LANGKAH JENIS BARU DRAG BIT
4 3 / 4inch Water Well Slick Drill Collar
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tiga sayap langkah tarik bit 2 3/8 benang
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digunakan bor bit ladang minyak baik skrap karbida tungsten
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semua ukuran gigi baja menggunakan tricone bit
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inti berlian intregnated untuk pengeboran geoteknik
149mm PDC bit bit cepat tingkat penetrasi
76mm 3 bit kualitas emas PDC bit
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.