Define the characteristics of steel is steel high strength, light weight, good rigidity, strong deformation, so for the construction of large-span and super, super-heavy buildings particularly suitable; homogeneous and isotropic material is good, is Ideal Steel installation elastomer manufacturer, best meets the basic assumptions of the general engineering mechanics; material ductility, toughness, and can have large deformation, can well withstand dynamic loads; short construction period; its high degree of industrialization, Dongguan steel welders, can be a high degree of mechanization of specialized production. High-strength steel steel should greatly improve its yield point strength; in addition of new varieties of steel to be rolled steel attic, such as H-beams (also known as wide-flange beam) and T-shaped steel and steel sheeting, etc. to accommodate large span needs structure and ultra-high-rise buildings. There is also no thermal bridge of light steel structure, the building itself is not energy efficient, this technology with clever special fittings to solve the problem of cold bridge construction; small truss structure of the cable from the wall and down the water pipes crossing, construction decoration are convenient. Construction Technology bolted connection method solder connection a heavy steel rivet connection. Weight lifting truss car plant: ≥25 tons. 2. Steel consumption per square meter: ≥50KG / m. Under the non-destructive testing is not damaged parts or raw materials, work status of the premise, to be tested parts of the surface and internal quality of a test method to check. Conventional NDT methods: ultrasonic testing: use of ultrasound can penetrate into the depths of a metallic material, by entering a cross-sectional another cross-sectional, reflection occurs at the interface between the edge features a method of verifying defect parts, since the parts when the ultrasonic beam occurs when the reflected wave respectively pass from the probe to the metals, the defects encountered with the part surface to the bottom surface, a phosphor screen formed on the pulse waveform, the pulse waveform is determined according to the position and size of the defect. Ray detection (X-rays, γ-rays): the use of radiation to penetrate objects found inside the object defect detection method. Magnetic detection: the detection of a ferromagnetic material surface and near-surface defects detection method used. When the workpiece magnetization, if the presence of surface defects, defects due to reluctance of the magnetic flux leakage is generated is increased, the formation of the local magnetic field, the magnetic powder will be shown here in the shape and position of the defect, in order to determine the presence of defects in steel canopy _ Peng Jian steel (certified) _ Zhuhai steel supplied by Peng Jian Steel Co., Ltd., Dongguan City. 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.