Chain device USES caterpillar chain, and chain plate adopts double circular and single circular arc form two, which is impact resistance, wear-resisting, no leakage.
链条装置采用履带链条，链板采用双圆弧和单圆弧两种搭接形式，抗冲击，耐磨顺，不漏料。
Outstanding ability in resisting interference, high reliability, stable current, perfect arc generating and convenient operation.
抗干扰能力强，可靠性高，电流稳定，引弧好，操作方便。
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