Chengdu Xintonggao Composite Equipment Co., Ltd. is a modern enterprise in China that integrates research and development, design, production, and sales of ordinary manhole cover series products, artistic manhole covers, intelligent information manhole covers (ductile iron, polymer), and intelligent comprehensive pipe galleries. The company is located in the Economic Development Zone of Dayi County, Chengdu City. After years of rapid development, the company now has excellent production equipment, advanced production processes, strong technical strength, and complete testing equipment.

In 2013, the company collaborated with a software development company to launch the first smart manhole cover, which was widely used in the 150 kilometer high-voltage cable tunnel in the urban area of Kunming Power Supply Bureau. With the sales of our products to various industries across the country, customers have put forward more demands for manhole covers. We are continuously improving and perfecting our smart manhole cover products, and have currently launched the 5th generation smart manhole cover based on NB IoT technology.

Our company adheres to the corporate philosophy of "people-oriented, innovative and practical", and has long provided high-quality products and excellent services for the construction of cities and the beautification of the environment. The company is the first in the industry to pass the GB/T24001-2004/ISO14001:2004 environmental certification, GB/T190011-2008/ISO9001:2008 quality management system certification, and occupational health and safety management system certification.

The company adopts internationally advanced V-method casting technology, which has the characteristics of high surface smoothness, dense internal structure of castings, and green and low consumption. The V-method casting production line built by our company has achieved high efficiency and high yield on the basis of fully utilizing V-method casting. Meanwhile, thanks to the environmental and energy-saving advantages of this process, the production line has also been widely praised as a modern green casting production line.