id	keyword
ajst-19313	drill pipe
ajst-19313	pipe joint
ajst-19313	sealing
ajst-19313	deviation
ajst-19313	limit deviation
ajst-19313	thread
ajst-19313	stress
ajst-19313	sealing performance
ajst-19313	joints
ajst-19313	mises
ajst-19313	pitch
ajst-19313	figure