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- aluminum alloy drill pipes 铝合金钻探管
- Petroleum and natural gas industries - Aluminium alloy drill pipe. 石油天然气工业-铝合金钻杆。
- Design of Permanent Mould for Aluminum Alloy Drill Housing of Guide-rail and Its Simulation 导轨钻机铝合金壳体金属型设计与铸造模拟
- Must these drill pipes be measured again? 这些钻杆必须再量一次吗?
- No defects did we find in these drill pipes. 在这些钻杆内我们没有发现缺陷。
- The portable aluminum alloy truss. 便携式铝合金桁架。
- Yangxin Aluminum Alloy Wheel Co. 阳新驰骋铝轮有限公司。
- Shanghai Huiya Aluminum Alloy Products Co., Ltd. 上海惠亚铝合金制品有限公司。
- Extruded aluminum alloy cylinder body. 挤压铝合金缸体。
- The drill pipe that was broken has been found. 断了的钻杆被找到了。
- Aluminum alloy formed shell, lastingly rustless. 铝合金成型外壳，永不生锈。
- Folding aluminum alloy guardrail is easy to use. 折叠式铝合金护栏，方便实用。
- Drill pipe threads are not cleaned in that way. 钻杆丝扣不是那样清洗的。
- Drill pipes are often corroded by the oxygen in the air. 钻杆在空气中经常被腐蚀。
- Drill pipes get rusty in air almost as fast as they do in water. 钻杆在空气中生锈的速度和在水中几乎一样快。
- The right thing to do now is to bent a drill pipe. 现在要做的事是拉弯一根钻杆。
- Gate, harmony doors, Wu Kuang doors, aluminum alloy. 卷闸门、和谐门、无框门、铝合金。
- I did not say if they had examined all those drill pipes. 我并没有说那些钻杆他们是否都检查过。
- Make up 15 joints of 5" HW Drill pipe. 接上15根5"加重钻杆。
- Good adhesion to steel, galvanized steel and aluminum alloy. 对钢铁、锌钢材及铝合金有良好的附着力。
