The high-frequency vibration motor relies on the frequency-modulated power supply to adjust the frequency of the motor to high-speed rotation and drives the eccentric wheel to make a circular motion, thereby generating vibration, and the vibration is transmitted to the end cover and even the casing through the raceway. The vibrator has long service life, high efficiency, large vibration amplitude, strong excitation force, no vibration loss phenomenon, compact structure, convenient use, few wearing parts and easy maintenance. It can be widely used in concrete tamping construction and other occasions that require a vibration source. 　　High-frequency vibrators are mainly used for prefabricated concrete components of railways, highways, highway bridges, and engineering buildings. Its vibration frequency is more than three times higher than that of ordinary vibrators. obviously decrease. It can save cost, speed up project progress and improve project quality. 　　The high-frequency vibrator has high excitation frequency (180HZ/S), large excitation force (12KN), small amplitude (1.3mm), and large radiation range (1.5m). The fluidity and plasticity of concrete are increased, and the compactness of components is improved. The molding is fast, and the quality can be greatly improved. It can run at a high speed of 9800 revolutions per minute. 　　Reduce template loss. Due to the high vibration frequency and small amplitude, less energy is consumed in the deformation of the steel formwork, which prolongs the service life of the formwork. 　　Easy to use. Due to its small size, light weight (only 23 kg/set), and the quick-loading structure, it only needs to be tightened with one screw to fix it on the formwork. It only takes 30 seconds to load and unload a vibrator, which saves 75% of the auxiliary installation time and 75% of manpower compared with the use of ordinary external vibrators. 　　The service life is more than four times that of ordinary vibrators. Due to the extremely high vibration efficiency of the ZKF vibrator, it only takes 30 to 40 seconds to stop each vibration, so the service life of the vibrator is greatly improved, the maintenance cost is reduced, and the construction cost is reduced. 　　Due to the strong excitation force, it can also be formed at one time for the construction of taller bridge columns. 　　It is the earliest high-frequency fast-loading vibrator in China. After nearly ten years of continuous technical improvement, the technology is very mature. 　　The product quality is reliable and excellent, the service life is long, and the quick-installation structure is adopted, which can significantly speed up the beam-making speed. 　　The construction quality has been significantly improved, and has been recognized and praised by many project departments and supervision departments.

　　The inspection well is set up for the maintenance of urban underground infrastructure such as power supply, water supply, drainage, sewage discharge, communication, cable TV, gas pipes, and street lamp lines, and is convenient for installation. It is generally installed at the intersection of pipelines, turning places, pipe diameter or slope changes, and at certain distances on straight pipe sections, which is convenient for regular inspection of ancillary structures. 　　The inspection well is used in the construction area (residential area, public building area, factory area, etc.) to buried plastic drainage pipes with an outer diameter of no more than 800mm and a buried depth of no more than 6m. Or slope changes, water drops, etc., for the convenience of regular inspection, cleaning and dredging, or well-shaped structures made of plastic injection molding or bricks for downhole operation and inspection. The plastic integrated injection molding inspection well means that the main well block that constitutes the inspection well is formed by one-time injection molding, the well shaft socket adopts a 360-degree ring-shaped bearing platform, the well body and the bottom of the well seat use mesh reinforcement ribs, and each socket adopts ring-type reinforcement. Rib design. Depending on the number and angle of connection, there are initial well bases, straight well bases, 45-degree elbow well bases, three-way well bases, and four-way well bases. In order to adapt to various drainage conditions, plastic inspection wells are equipped with plastic integral injection molding accessories such as reducing joints, confluence joints, and multi-joints in the wellbore. To ensure the smoothness and tightness of the entire drainage system. 　　1) Plastic drainage inspection well projects with buried drainage pipes with an outer diameter of no more than 1200mm and a buried depth of no more than 8m in building areas (residential areas, public building areas, factory areas, etc.), urban and rural municipalities, industrial parks, old city renovations, etc. Design, construction and maintenance. 2) Construction of plastic drainage inspection wells under the conditions of general soil, soft soil, seasonal frozen soil and collapsible loess; 3) Areas where the seismic fortification crack degree is 9 degrees or below. 4) The ground load of the general driveway is designed according to the total vehicle weight of 15t (the rear wheel pressure is 5t); the ground load of the fire lane is designed according to the total vehicle weight of 30t (the rear wheel pressure is 6t). 5) The groundwater level is designed to be no higher than 1.0m below the ground;

Prestressed Concrete Cylinder Pipe (PCCP) is a composite pipe composed of concrete and steel cylinder, which overcomes the shortcomings of poor corrosion resistance of steel pipes and poor impermeability of concrete pipes, and not only has The advantages of steel pipes and concrete pipes, but also some new advantages.