YANTAI, China, Feb. 23, 2018 /PRNewswire/ — Recently, Mining Research & Design Test Center of Shandong Xinhai Mining Technology & Equipment Co., Ltd. obtained the approval of China National Accreditation Service for Conformity Assessment, CNAS. This demonstrates that Xinhai Mining Research & Design Test Center has: Gained recognization by national and regional laboratory accreditation institutions […]

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