Video Channel of China Hunan New Diamond Construction Machinery Co., Ltd.
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New Diamond heating treatment

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June 05, 2020
Category Connection: Буровые наконечники DTH
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our heating treatment process, check more on our website www.dthhammerbits.com,https://mao.ecer.com/index.php?r=product/edit&pid=13225641
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#буровые наконечники тяжелого рока #Баллистические биты кнопки #буровые наконечники воздушного молота
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