1, The oil seal is mainly used in  excavator walking speed reducer. These models are

SK200 MARK V EXCAVATOR BTW YN018001---YN022848(NA),

SK200 MARK V EXCAVATOR BTW YN018001---YN022848(ANZ),

SK200 MARK V EXCAVATOR BTW YQ002301---YQ002654(NA),

SK200 MARK V EXCAVATOR BTW YQ002301---YQ002654(ANZ),

SK200LC MARK IV EXCAVATOR BTW YQU2001---YQU3000

  SK200 MARK IV EXCAVATOR BTW YNU0201---YNU0500

2, Superior quality and competitive price .