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我们的漂流和延伸钻杆用于漂流、隧道、长孔钻探、长孔钻、长凳和生产钻井行业。这些棒在所有常见的螺纹设计中都带有圆形或六边形部分,并在男性/男性(M/M)或男性/女性(M/F)连接中生产。我们所有的漂流和延伸钻杆都是用化油或高频热处理的,与磷化混合。
200m south of XIHU town government,yanggu county
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