Hana ʻia nā loulou track Crafts e like me ke kūlana o OEM.Hoʻopili ʻia nā loulou track Crafts āpau e ke kila kūikawā 35MnB.I ka hoʻohālikelike ʻana i nā loulou track ʻē aʻe i hana ʻia me 40MnB a i ʻole 40Mn, ʻoi aku ka maikaʻi o kā mākou mau loulou i ka paʻakikī a me ke kūpaʻa abrasive.