The inspection well is set up for the maintenance of power supply, water supply, sewage, communication, cable TV, gas pipe, street lamp line, etc. of the urban underground infrastructure. It is generally located at the intersection of pipelines, turning points, pipe diameters or slope changes, and at certain distances on straight pipe sections. It is convenient for periodic inspection of ancillary structures and has the following advantages:

　　1. It adopts rotomolding and integral molding technology, seamless and no welding, which can realize complex structure design and good strength.

　　2, imported engineering plastic materials, with acid and alkali resistance, corrosion resistance, wear resistance and other excellent properties.

　　3, the wall thickness is more uniform, especially the corner is not easy to break, good toughness.

　　4, maintenance and maintenance is simple, long service life, comprehensive use cost-effective.

　　5, the product is light, easy to carry, easy to install.