Early various poles, are starting from the woods, and even high-voltage voltage level is not too high poles. In some less developed parts of erecting telephone line also uses wood, because wood is lightweight, easy to set up, and a small telephone line load and tension, wood can be competent, telephone lines are subject to change, shift lever is also convenient. So, there are some wooden telephone pole.

   Since the development of steel and concrete, the principle of combining technical inquiry, using centrifugal force to manufacture cement concrete cone rod diameter instead of the majority of wood and other cement poles, concrete poles durable, corrosion resistance, temperature difference, high strength, crack. And the scarcity of suitable timber gradually, cement poles look smooth and beautiful, easier to beautify the city, the city which is basically difficult to see the wood.

    Prestressed concrete poles are divided into two kinds of non-prestressed poles. Its facilities include a running wheel usually, steel, truss cars, motors and so on.

   The steel poles placed on the running wheel, then stir well into steel and concrete, covered with steel and bolted, running wheel driven by the motor rotation, thereby enabling the steel produced, the rotation of the centrifugal force, the hollow cement poles formed and gradually solidified, to accelerate the solidification process, you can use the steam boiler burn out promoting cement structure after denaturation during rotation.

   Shandong Sheng Machinery Co., Ltd has been committed cement products machinery research and development, production and sales, with advanced equipment, professional and technical skills, and two decades of practical experience, the company has always been at the forefront of research and development center block making machine market development , concerned about the advanced technology at home and abroad, to develop products for the investment needs of different users, there are block making machine, hydraulic tile machine, cement pipe machine, blender, suspended roller machine, wire rod machine equipment. Currently has 19 branch offices and six foreign countries (Nigeria, Tanzania, Algeria, Kenya, Mozambique, Ethiopia) and exported more than 100 countries and regions.