Jiuding common grating is a structural plate which uses high-strength E-Glass roving as reinforcing material, thermosetting resin as matrix and then cast and formed on a special metal mold. They are America standard gratings and are most popular types. The gratings have good electrical insulation, non-magnetic, light weight, easy installation and use for platform, walkway and trench cover.

- Features: light weight, high strength, corrosion resistance, fire resistance
- Surfaces: meniscus, grit, smooth
- Resins: GP, ISO, VE
- Dimensions: No 1 through No 8