Hangzhou Xingda ventilation equipment to undertake all types of tin ventilation engineering, ventilation engineering tin Hangzhou, Shaoxing tin ventilation engineering, fume purification project in Hangzhou, Hangzhou, engineering, installation and design of ventilation, fire smoke hotel kitchen project, Hangzhou, central air-conditioning duct installation and other train service. The company has experienced professional and technical personnel, specialized in various industrial and mining enterprises, hotels ventilation pipe installation, ventilation ducts schools, hospitals and other ventilation and exhaust gas treatment, waste dust collection of design and installation. Direct molding method is the direct use RPM technology to produce molds, RPM technology in various methods can be directly produced metal mold is SLS method. With this method of manufacturing a steel copper alloy injection molding, kitchen ventilation ducts, life of up to 50,000 or more. However, this method there is a greater material shrinkage during sintering, Hangzhou ventilation pipes, precision is difficult to control. Indirect molding method can be divided into: 1) a simple soft silicon rubber mold making, metal powder epoxy powder and low melting point alloy into a mold an exact copy of the prototype or the prototype surface treatment, metal spraying or physical vapor deposition coated with a low melting point of the alloy to produce a layer of mold. Hangzhou Xingda ventilation equipment to undertake all types of tin ventilation engineering, ventilation engineering tin Hangzhou, Shaoxing tin ventilation engineering, fume purification project in Hangzhou, Hangzhou, engineering, installation and design of ventilation, fire smoke hotel kitchen project, Hangzhou, central air-conditioning duct installation and other train service. The company has experienced professional and technical personnel, specialized in various industrial and mining enterprises, hotels ventilation pipe installation, ventilation ducts schools, hospitals and other ventilation and exhaust gas treatment, waste dust collection of design and installation. Installation of air conditioning refrigeration and air-conditioning supply hot water to the top of the riser pipe vertical and focused on a few pipe shafts, therefore, should be carried out before the construction drawings on paper loft, in order to complete each step of the installation (pipeline corrosion, pipeline Test and pipeline insulation and other processes), but also for future owners to create conditions for maintenance and management. Riser installed in the shaft should be at the wellhead set up steel supports, white metal ventilation pipe, the upper and lower unity hanging wire installation card holder, install manifold should draw a line position, central air conditioning and ventilation pipes, and prefabricated branch pipes laid in a predetermined position, find the right location After nailing with a hook. Stand pipes should be accounted for and re-design, and at the time of the civil professional formwork, the embedded parts laying ready. Since the air conditioning chilled water riser length is longer, in order to ensure the safe operation of the system, according to design requirements set expansion joints in the pipe shaft and with fixed bracket. Central air-conditioning ductwork _ _ Hangzhou Xingda ventilation ductwork (View) supplied by Hangzhou Xingda ventilation equipment. Hangzhou Xingda ventilation equipment (www.tz1288.com/shop/index_6525.html) is a professional, "tin works, tin ventilation engineering, stainless steel ventilation engineering, central air-conditioning duct engineering" company. Since its inception, we adhere to the "good faith, sound management" approach, the courage of healthy competition in the market, so that the "ventilation Xingda" brand has a good reputation. We adhere to the "service first, customer first" principle, so Xingda ventilation won the trust of customers all of the fan, ventilation equipment, and establish a good corporate image. Special Note: This information is for reference only pictures and information, please contact us to obtain the most accurate information, thank you!