This standard specifies the classification, load-bearing levels, technical requirements, test methods, inspection rules and markings of polymer-based composite water grates. This standard applies to polymer-based composite water grates installed in various parts of various road surfaces (including roads, both sides and middle of highways, green spaces, indoor floors in factories and workshops, etc.).
CJ/T 212-2005 history
2005CJ/T 212-2005 Water grate made of polymer matrix composites