Ayyukan biyu na rufewa da ƙura ana cika su ta hatimi.
Rage farashin sarrafawa, sauƙin ajiya.Yawaita ajiyar sarari
Grooves suna da sauƙin yin injin, don haka rage farashi.
Ba a buƙatar ƙarin daidaitawar axial.
Zane na musamman na lebe mai rufewa yana tabbatar da aiki mai santsi da kwanciyar hankali.
Saboda abu shine elastomer polymer, don haka ba zai yi tsatsa ba, lalata.