USED KOMATSU WB91R-5 WB93R-5 WB93S-5 WB97R-5 WB 97S-5 WB146-5 WB cilindro hidráulico para Komatsu WB 91R-5 / WB 93R-5 / WB 93S-5 / WB 97R-5 / WB 97S-5 / WB 146-5 / WB 146PS-5 / WB 156-5 / WB 156PS-5 retroexcavadora