ball bearing core barrel
basket-type core barrel
conventional core barrel
Core Barrel
岩心管
岩芯钻筒
岩芯筒
堆芯吊篮
岩心筒
岩芯管
取芯筒
岩芯钻管
管状芯骨
吊篮筒体
心骨管
堆芯围桶
核电吊篮筒体
反应堆容器
吊篮
心形管
core barrel cent(e)ring pad on internals support ledge
core barrel emergency support pad
core barrel of double tuberigid type
core barrel of double tubeswivel type
core barrel support ledge
core barrel support skirt
core barrel with rubber core container