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 equipmentproviding factory by chinese ministry of machine building and henan mechanical ...