ZHANGJIAKOU, CHINA - FEBRUARY 23, 2023 - A worker works on a drilling tool production line at Xuanhua Economic Development Zone in Zhangjiakou, Hebei province, China, Feb 23, 2023. At present, there

Download this stock image: ZHANGJIAKOU, CHINA - FEBRUARY 23, 2023 - A worker works on a drilling tool production line at Xuanhua Economic Development Zone in Zhangjiakou, Hebei province, China, Feb 23, 2023. At present, there are 390 drilling machinery manufacturing enterprises in Xuanhua District, with 150 independent intellectual property rights of various kinds. The annual output of 240 kinds of drilling machinery products in 15 series, such as rotary drilling, underground drilling, rock drilling and tunnel, is more than 6000 sets (sets). The products sell well in the domestic market, and are exported to more than 30 - 2NJRPKY from Alamy's library of millions of high resolution stock photos, illustrations and vectors.

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