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Henan Zhengzhou Mining Machinery Co., Ltd. Henan zhengzhou mining machinery co.,ltd is leading mining equipments manufacturing in the world, who has provided innovative technology and products for mine and energy of over 100 countries and district. It is built in 1956 and locates its factory in xinngyang, henan, china. It is appointed as the fixed equipment-providing factory by chinese ministry of machine building and henan mechanical electronic bureau. The development during the last half century has witnessed its capital assets being over rmb100000000 and becoming a comprehensive modern enterprise with the service of scientific research, design, manufacture, sales, installation, commissioning and worker training. The production lines provided by us mainly include: magnesium production line, cement production line, lime production line, ore dressing line, and oil proppant production line, main products include: rotary kiln, ball mill, granulator, bucket elevator, vertical preheater, vertical cooler, crusher.