The Yellow River No. 1-Equipment Manufacturing-Welcome To The Official Website Of China Hualong International Construction Corporation

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Equipment Manufacturing

The Yellow River No. 1

2022-10-12 10:57

&amp;quot;The Yellow River No. 1&amp;quot; tunnel boring machine Length 89m, diameter 6.29m, speed 8cm/s

"The Yellow River No. 1" tunnel boring machine Length 89m, diameter 6.29m, speed 8cm/s

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