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Shanghai FRP grating cover | Shanghai car wash grille | Shanghai FRP cable trench cover glass steel grille | Glass steel grating | cover glass steel grille | car wash grille | fiberglass cover | Tree grate | Tree Wai | fiberglass trench cover long Sagawa FRP Products Co., Ltd. [Anhui, Hunan FRP grating | Wuhan FRP Grating manufacturers | Hubei FRP Grating | FRP gratings Chongqing | Sichuan FRP Grating FRP Grating] Preferred Anhui, Hunan long Sacheon factory, Wuhan Special Offers Chongqing, Sichuan, Hubei, FRP grating, fiberglass grating, fiberglass grille cover, car wash grille, fiberglass cover China's largest manufacturer of glass fiber reinforced plastic grille. Shanghai FRP grating cover | Shanghai car wash grille | Shanghai FRP cable trench cover 1, before purchasing grating must probably understand the properties of the grid, use, etc., depending on the application and the application to classification, know to prepare their own procurement What kind of goods. 2, to understand the main component of glass fiber reinforced plastic grille, probably the market price (which can be calculated from the raw materials), the main origin (which determines whether the technology is mature). 3, a clear plan usage, the size of data and the project cost budget, do know the answer. 4, glass steel grille with color uniform, smooth and not exposed rib wall white, whole plate about 1mm gap at less than 1%, the surface does not crack (the naked eye can not see, a whole plate within 2) is preferred.