Liaocheng RZ Constr. Cutter Co., Ltd. is a professional manufacturer of rotary bits, coal mining bits, flat bits and shield driving cutters. "Ruizuan" products are widely used in coal mine, underground mine, tunnel, subway, metallurgy, water conservancy project, highway project and other projects, "Ruizuan" products are well accepted by customers in China's more than 20 provinces, municipalities and autonomous regions and also in Japan, America, the United Arab Emirates, Brazil, Australia and other abroad markets.



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