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在美国西德克萨斯安德留区六个油田,阿莫克公司在13个抽油杆柱上装了31～90％的玻璃纤维抽油杆。在这些杆柱的下部安装了一些钢制抽油杆,这是为
In six fields in the Andiru district of West Texas, Amoco installed 31-90% fiberglass sucker rods on 13 sucker rods. Some steel sucker rods are installed in the lower part of these rods