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Shanghai's self-developed "Dongjin" quasi-rectangular shield tunneling machine was successfully launched at Dongjing Station on May 25 for the west extension of Metro Line 12, marking the official commencement of tunneling works.
Shanghai's self-developed "Dongjin" quasi-rectangular shield tunneling machine was successfully launched at Dongjing Station on May 25 for the west extension of Metro Line 12, marking the official commencement of tunneling works.