Trench cover Features: low cost, attractive appearance, easy to clean, variety, variety can be customized. Trench cover Usage: for roads, grating factory, railway, municipal engineering, grating, garden facilities, residential quarters, schools and other drainage features. Trench cover Surface treatment: hot galvanized, painted surface treatment. Surface treatment: G galvanized, P painting, U do not handle flat appearance: P flat, S-slip type, I-section I-flat rail center spacing: 30mm / 100mm / 50mm (other size specifications can be customized) flat Steel center spacing: 30mm / 40mm / 60mm (other size specifications can be customized) high strength steel grating ceiling with a light structure, strong pressure welding grid structure with high carrying it, the structure of light, grid plate prices, easy crane unloading, installation and so on. 2, steel grating as ceiling use, with beautiful appearance, durable: hot-dip zinc surface treatment it has a very good corrosion resistance, surface gloss appearance. 3, the use of this product has good ventilation, lighting, cooling, explosion, skid resistance. 4, easy to use as a ceiling self-cleaning, easy to maintain. long lasting. Grating | En thousand galvanized steel wire mesh grille | grating national standard specifications are provided by thousands of ex Anping Wire Mesh Products Co., Grating | one thousand ex galvanized steel wire mesh grille | grating GB specification is one thousand ex Anping metal mesh Products Co., Ltd. (www.hbqianen.com) (www.qianenwangye.com) this year introduced a new upgrade The above picture is for reference only, please call Tel picture on this page or to obtain the latest information, contact: Wei double.