套管螺旋 – phrases

Terms for subject Drilling containing 套管螺旋 | all forms

Chinese	English
套管的螺旋扶正器	coaxial spiral
用螺旋装置撑开或缩的套管封隔器	screw casing anchor packer
螺旋滚轮套管扶正器	spiral idler wheel casing centralizer