导向支架过载保护，能自动均衡锯齿阻力，有效延长锯带使用寿命。
Stand-oriented Overload Protection to automatically balanced serrated resistance, effectively extending the service life with a saw.
导向支架过载保护，能自动均衡锯齿阻力，有效延长锯带使用寿命。
Stand-oriented Overload Protection to automatically balanced serrated resistance, effectively extending the service life with a saw.
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