Linear Bearing 1:LM, LME, LMB ,LM...L...UU series 2:High quanlity 3:Long life 4:standard: ISO9000- ... series LM...UU, LME...UU, LMB...UU, LM...L...UU, LME...LUU, LMF...UU, LMK...UU, LMH...UU, LMEF...UU, LEMK...UU, KH...LMF...LUU, LMK...LUU, LMH...LUU, LMEF...UU. LMEK...UU, ST...UU, ST ...