| 采用全铝合金箱体，自重更轻 |
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| 采用双锥面短行程同步器，预选式“分档”的换档 |
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| 模式，助力换档，换档轻便可靠 |
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| 半档及副变速器组合设计，人性化操作 |
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| 档位排列合理，档间级差小，燃油经济性高 |
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| 爬坡档传动比高，低速重载动力性能好 |
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| 采用“直推式”气缸，换档更可靠，寿命更长 |
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| 全锥轴承支承结构，大齿宽、大齿根圆角，传递扭 |
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| 矩更大，承载能力更强 |
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| 齿轮、轴、同步器采用优质ZF钢材料，产品寿命长 |
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| 修形磨齿，强化齿面工艺，传动效率高，噪声低 |
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| 高低档设有保护机构，换档品质高，使用寿命长 |
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| 油封及弹簧采用进口件，可靠性高 |
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| Full duralumin housing, lighter curb weight |
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| Shifted by double conical face and short travel synchronizer, preele- |
| cted bracket shift mode, assistant shifting, easier and more reliable |
| Combine design of half-gear and auxiliary box, humanization handle |
| Rational arrangement for speeds, small ratio steps and good fuel ef- |
| ficiency |
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| High transmission ratios of crawler, good performance of low speed |
| and over loaded |
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| With direct push cylinder, more reliable shifting, and longer life cycle |
| of product |
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| Full conical shaft structure, big facewidth and tooth root fillet, bigger |
| transfer torque, good load capacity |
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| Gears、shafts、synchronizer made of quality steels imported from |
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| ZF, long product life |
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| Fully grinded gear tooth, forced workmanship of tooth surface, high |
| efficiency in power transfer, low noise |
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| Fitted with protector of high and low speeds, high quality shifting, lo- |
| ng life |
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| Imported oil seal and spring, good reliability |
