Discussed earlier fatigue strength, ductility, hardness is the metal under static load mechanical performance indicators. In fact, many machine parts are working under cyclic loading, part under such conditions will produce fatigue. Impact toughness at great speed on the load acting on the parts called impact load, ability to resist damage in metal impact loading is called toughness. Uses: As the galvanized square tubes is carried out on the square tube galvanizing process, it makes the range of applications than galvanized square tube square tube has been greatly expanded. It is mainly used for walls, elbow specifications, construction, machinery manufacturing, elbow, steel construction projects, shipbuilding, solar stent, steel structure engineering, electrical engineering, elbow prices, power plants, what is the elbow, agricultural and chemical machinery , glass walls, chassis, airports and so on. Elbow, Chun Branch pipe, elbow specifications provided by the Tianjin Steel Co., Ltd. Chun Branch. Elbow, Chun Branch pipe, elbow specifications Steel Co., Ltd. of Tianjin Branch Chun (www.tjsjkgt.com) (www.tjsjkgt.com) this year introduced a new upgrade, the above picture is for reference only, please call this page or Tel picture on to obtain the latest information, contact: Liu Baoming.