Alloy steel gear, hard tooth surface, large in output torque and durable in use.
齿轮材料为合金钢，硬齿面，输出转矩大，可靠耐用。
High precision and performance, torque accurateness, control the tension precisely in a large scale.
高精度，高性能，转矩准确，在大范围内精确地控制张力。
The top-head has large torque, wide range of speed, big pull force.
动力方扭矩大、转速范围广，起拔力大。
The top-head has large torque, wide range of speed, big pull force.
动力方扭矩大、转速范围广，起拔力大。
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