The general location of the center of the ordinary bollard frontier line from about 0.5 to 0.8 m, too close, easily away when hit by the ship and on the ribbon cable operation is not safe; after too far, impede handling machinery operations and damage the cable. For outfitting and repair docks, due to the forefront of the electrical connection boxes and other facilities there, the front edge of the column spacing requirements mooring lines farther, take about 0.8 to 1.0 m. When bollard for mooring of vessels with storm storm system, generally located at the rear of the pier. Some ports due to typhoon little chance, or not within the ship to harbor strong winds, which no storm bollard; some ports, handling and transportation machinery in order not to hinder the operation of the rear dock without separate storm bollard bollard specifications, but the size of the ordinary bollard increase, it can also be used in high winds. Shandong dock bollard, Chen Hua mechanical 250kn iron bollard, bollard dock provided by China Machinery Equipment Co., Ltd. Qingdao Chen. Qingdao Hua Chen Machinery Co., Ltd. (www.qdchenhua.com) is Qingdao, a leader in CNC machine tools over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Chen Hua Machinery leadership in the staff warmly welcome all inquiries to discuss bollard, Chen Hua to create a better future for machinery. Casting is also closely related to daily life. For example, often use the door handles, locks, radiators, down the water pipes, pots, gas hob, iron, etc., are casting. Casting metal forming theory often called liquid molding casting, casting forming technology has a long history. As early as 5,000 years ago bollard order, our ancestors could cast copper and bronze. Casting is the most widely used metal liquid molding processes. It is the liquid metal is poured into the mold cavity, wait until the cooling and solidification, to obtain a certain shape or parts of the method blank. Cast iron bollard bollard _ _ Chen Hua Chen machinery provided by Qingdao China Machinery Equipment Co., Ltd. Chen Hua Machinery Co., Ltd. Qingdao strong, credible, in Qingdao, Shandong CNC machine tool industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Chen Hua machinery and you hand into the brilliant, for a better future! Bollard order, bollard, Chen Hua machinery provided by China Machinery Co., Ltd. Qingdao Chen. Qingdao Hua Chen Machinery Co., Ltd. (www.qdchenhua.com) strong, credible, in Qingdao, Shandong CNC machine tool industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Chen Hua machinery and you hand into the brilliant, for a better future!