Ihe mkpuchi nke ihe ndị dị n'ime ala dị ka hydraulic Control Lines, Single Line Encapsulation, Dual-Line Encapsulation (FLATPACK), Triple-Line Encapsulation (FLATPACK) aghọwo ihe jupụtara na ngwa ala.Ihe mkpuchi nke plastik na-enye ọtụtụ uru na-enyere aka hụ na mmecha nke ọma.