Plastic manholes, pipes and other fiberglass septic tanks, fiberglass grease traps and other equipment. Manhole Features: 1 acid corrosion resistance, aging resistance. Long life time components using thermoplastic injection molded, and by the National Chemical Building Materials Test Center tests. 2. Safety and environmental protection material plastic manhole is a high-density polyethylene plastic, non-toxic and tasteless, the use of recyclable, environmentally friendly building materials belonging to the chemical, in line with state policies and principles of environmental protection. 3. uniform settlement, compression pipe with flexible connection seat wells, pipelines and wells seat of clay together sport, a good solution to the problem of uneven settlement traditional inspection wells with plastic pipe connections generated, effectively prevent ground subsidence. 4. Construction of convenient and efficient use of sub-assembled structures, the wellbore can live cut, adjust, adapt to a variety of mounting depth requirements, reduce costs and greatly improve the construction schedule, shorten the construction period is 10 to 20 times more than the traditional inspection of the well, and all-weather construction, inspection and other cement block brick masonry wells can not be compared with them. 5. Efficient drainage flowing smooth wall with diversion tank, easy dirt retention, reducing the possibility of clogging, has excellent drainage, rainwater and sewage discharge rate is 1-3 times that of traditional manhole. 6. Light weight, easy to transport and install, reliable performance, strong bearing capacity, fit and strong variety, can be adjusted in height and the cylinder bore drilling, adjust the direction, to meet all the needs of the project installation. 7. lower total cost, maintenance cost less than traditional manholes advantage, can be recycled use, has a huge social benefits. 8. good sealing performance, anti-leakage due by way of flexible connection, flexible, able to overcome the dust, the dust of the harsh construction environment, but also to overcome the difficulties arising from increased road and can not be repeated insertion and good sealing performance, prevent rain water seepage, leakage, in order to prevent groundwater contamination. 9. Plastic manholes saving materials for processing materials by polymer resin replaces the red brick cement, saving topsoil resources used in residential construction specifications narrowed significantly saving buried manholes land occupied space.