Nke a na-eji sprocket maka 50T excavator nke DOOSAN, ihe bụ 50Mn ma ọ bụ 45SIMN, ike siri ike bụ banyere HRC55-58, na-enwe obosara oke nso, na sprocket bụ ọdabara na pụrụ iche nlereanya nke crawler ụdị excavators na bulldozer si 0.8T-100T, ọ bụ ọtụtụ ebe etinyere na bulldozers na excavators nke Komatsu, Caterpillar, Hitachi, Kobelco, Doosan, Volvo, Hyundai, Daewoo wdg, na-anabata teknụzụ nhazi nkenke na usoro ọgwụgwọ okpomọkụ pụrụ iche, yabụ rute nguzogide kachasị mma na ogologo oge ndụ ruo n'ókè kachasị.