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Kahawtahan Kaalaman Bus: Innovasi dina Tabal Retarders Hydraulic Intents. 3. Kumaha Hidraulic Retarders ngalangkungan 3.1 Mekanisma di tukangeun Retarders Hydraulic 3.2 Pengetasan Dina Sistem Braking Tradisil 4. Innovasi anyar dina Retarders Hydraulic 4.1 Material Majalat sareng Desen 4.2 Integrasi sareng Techn Bus Modero