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Cusomized Long Reach Boom Tunnel Arm Boom Q355B Used For 6-50 Tons Excavator
An excavator tunneling arm, also known as an excavator telescopic arm, is a special working device mounted on the large arm of an excavator designed to extend the excavator's operating radius and deep vertical digging range. This device is designed to allow the excavator to perform precise operations in confined spaces, especially when deep underground tunneling or underground space development is required