IADC537 tricone bit - Superdrill
8 1/2' IADC547 tricone bit... CopyRight 2013 All Right Reserved Superdrill Enterprise website system 鄂ICP备18004920号 Sitemap ADD: Whatsapp:+86 18186993613 (Lucy) Email: [email protected] TEL: 0713-8906693 FAX: 0713-8906693
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