Manufacturers should pay attention to the following process: ①, end milling planing to design requirements, after cutting the local asperities for grinding with the angle grinder. ②, drilling holes and especially the group row of holes, requiring accurate pitch, drilling can be sent using a plate stacked drilling method. After drilling burr should be removed. ③, planing welding groove with a planing machine planing, planing groove. Not use planing machine and planer planing groove steel company, semi-automatic cutting machines available after the slope, then grinder grinding, must pay attention to the correct bevel angle planing. After entering the material required in batches, classification release, should not be used immediately neatly stacked and covered with canvas or plastic sheets. For laying sleepers must be kept dry, the material must not touch the ground. Semi-finished steel lifting. 25t cranes using tires. Before lifting should bomb line on the template according to the design requirements, the use of single specimens of lifting when lifting, lifting point four-point lashing, lashing points to which the application of soft material to prevent the steel components pad damage. When lifting the first member hanging around 50cm from the ground, then slowly rise steel buildings hook, hanging to the bridge over the elements, and then slipped the rope so that it is aligned rotating member installed steel parts, should be off the hook slowly, place After taking spot welding steel plant temporarily fixed cost, while checking with a hammer hanging vertical line correction, in line with the design and specification requirements before welding. Steel detection problem through the steel construction in every step. Search moral measure of construction steel works play an important control role. Search tools, precision measuring instruments, or a direct impact on the quality of construction. So that the construction quality in a non-controlled state. For example: When assembling columns, search measure of style pattern also make checks out the incorrect data is not accurate. Measuring theodolite verticality of the column, often the actual measuring instrument baseline alignment edge of the column, the column edge due to the presence of various fully deformed so measured into the perpendicularity often various modifications, such as bending, full unyielding, distortion, etc. deformation accumulated value, this value can not really reflect the degree of vertical columns. Moral control and prevention measures to control the problem of steel material used in steel works not only must have a steel material and moral certificate information in negotiation, during transport and recipients should be strict procedures. And the material requirements and national standards for hypothetical GB700-88 delineated. When the use of the important parts of the steel structure of the steel material or doubt, you must perform a careful examination of the chemical composition and mechanical properties, if necessary, conduct performance testing process, those who do not meet the requirements for use of the material is prohibited. Deformation beyond the range of materials can correct use is strictly prohibited. By the department before the hypothetical substitution after approval, substitute the steel must be determined jointly study the design department. Not free to substitute or change the material. Steel plant, Peng Jian steel (certified), Dongguan, Huizhou steel supplied by Peng Jian Steel Limited. Steel Co., Ltd., Dongguan City, Peng Jian (dgpengjian.cn) is Dongguan, steel leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Peng leader in steel construction with the staff warmly welcome all inquiries negotiations to create Peng build a better future for steel.