hydraulic coverter used for D65, D85, D155, D355, D6D, D7G, D8L and so on, Our hydraulic torque converters have developed from a single model to two large series of 13 models, including D65, D85, D155, D355, D6D, D7G, D8L and so on, basically covering all models of hydraulic torque converters used for the bulldozers in China.We can also supply the gear box used for hole digger,agricultrural, ...