Isetshenziswa ngokujwayelekile ekubumbeni umjovo noma ekubumbeni i-extrusion, ikakhulukazi esetshenziswa ekukhiqizeniIpayipi lamandla le-MPP, ipayipi elingacindezeli, imikhiqizo yokubumba, isisekelo semithwalo, izingxenye zebhayisikili,ikesi lebhethri, izingxenye zokufafaza, izilungisi zezimoto nokunye.