Our GRP grating have the features of crater, sand-finished, biplane, plate grate. 1. Corrosion resistance: It has excellent acid resistance, alkali resistance, organic solvent resistance, saline and other many gas and liquid medium resistance. It also has unsurpassable superiority in anticorrosion field. In terms of actual using environment, the customer can economically select pyrocatechol, m-phenylenediamine and ethenyl resin as base. 2. Light weight and high intensity: the density of GRP grating isn’t larger than 2, only 1/4 of steel and 2/3 of aluminum. Its strength is 10 times of that of hard PVC, and its absolute strength exceeds those of aluminum and common steel. 3. Resistance to age: Its operational life is longer than 50 years. grp grating 4. flame retarded: the flame transmitting speed of common flame-retarded grating(ASTM E-84)doesn’t exceed 25, the flame transmitting speed of common flame-retarded grating doesn’t exceed 10 and the oxygen index isn’t lower than(GB 8924).