outer casing
【建筑】井壁管（堆井壁管）【建筑】井壁管（桩柱井壁管）
casing tube (pile casing tube)
暂无补充释义。
相关词条
casing ring
spiral casing (volute casing, spiral housing)
Casing
ignition distributor casing, air-tight
bell-weevil hanger【油气】;casing hanger【油气】
casing O-ring
split-casing pump