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        Shandong Zhongrui Construction Machinery Co., Ltd. (formerly Weifang Zhongrui Construction Machinery Co., Ltd.) is an enterprise engaged in the research and development and production of rock drilling machinery。

　 The company covers an area of more than 80 acres, the construction area of more than 20,000 square meters, with CNC machine tools, deep hole grinder, CNC machine tools and other advanced mechanical processing equipment and Axielin heat treatment production line.

　 The company has a perfect quality management system and has passed ISO 9001:2015 quality system certification. It has a high-level laboratory with advanced equipment and perfect testing means……