casing head

短语词组

短语

• casing -head 套管头
• casing screw head 套管母扣护丝
• casing drive head 套管帽
• casing g head 套管头
• casing circulating head 套管循环接头
• Humate additive for casing -head mud 腐殖酸钻井泥浆添加剂
• cement casing head 水泥头;注水泥套管头
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