井壁管 meaning in English

casing pipe
casing tube
well casing
well tube

Diamond press machine , synthetic diamond and its products various pressure containers other produts sucker rods , various derricks , drilling tools , hydraulic jacks , water swivels , hydraulic breakout tools , hydraulic pumping units and so on
该厂的主要产品有：地质岩芯钻机工程施工钻机水文水井钻机汽车钻机钻塔泥浆泵金刚石压机人造金刚石及制品液动螺杆钻泵井壁管和抽油杆以及一