1.high-quality 2.high- elastic 3.rigid 4.automatically adjustable 5.stable ruilong drill integral drill rod ,anchor drill rod introductionruilong drill integral drill rod ,anchor drill rod Anchor drill rod; wind drill rod, integral drill rod ruilong drill integral drill rod ,anchor drill rod Material: hex. Hollow alloy steel of 55SiMnMo, 90CrMoruilong drill integral drill rod ,anchor drill rod ...
Good quality and good price Approved by CCS,and Noray,GL of German,BV of France,NK of japanese KR of Korea etc.The company had passed the certification of ISO9001:2000Conform to the standard:GB4442-1984(CB/T24-1999) Four fluke anchor
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