Trench cover how to choose the trench cover material is used in accordance with certain spacing and flat rails twisted steel, square steel, round steel, flat steel and other cross-arranged car wash plastic trench cover, and welded into the middle with a square lattice of steel products. By slitting flat is flat and made of steel plate cutting. Flat material is normally done Q235,304: corrosion resistance in general, the most common swimming pool grating trench cover is recommended. 316 (316L): corrosion-resistant ability, more expensive. 301: Corrosion-resistant metal trench cover parking capacity is weak, the price is cheaper. Flat common models 253 255 303 305,323,325,403,404 405, etc.,. Flat shape into: flat tooth with type I flat. Toothed steel: Model and flat like an ordinary, except that the flat side has spiky teeth marks. Mainly due to slip. I type steel: flat sides thick in the middle and thin. Twisted steel: also called twisted square steel. Generally 5x5 6x6 8x8 square steel, twisted steel. Common specifications 20 * 5,25 * 5,25 * 3,32 * 5,32 * 5,40 * 5,40 * 3,50 * 5,65 * 5,75 * 6,100 * 8,100 * 10 AOpen factory outlets, etc. Because so many of the specifications. Air Quality Gold Mesh Products Co., Ltd. Hebei take over, reasonable price and high quality service to win customers praise! And eager to support each trench cover with the user units, mutual benefit and long-term friendly cooperation trench cover common specifications flat Specifications:! 20 × 3,25 × 3,30 × 3,40 × 3,50 × 3,30 × 4,40 × 4,50 × 4,25 × 5,30 × 5,32 × 5,40 × 5,50 × 5 (mm) crossbar Specifications: crossbar using twisted steel, diameter is generally 6mm, 8mm flat center spacing: 30,40,60mm crossbar center spacing: 50,100mm surface treatment: hot dip galvanized, painted gold mesh Hebei Airlines Co., Ltd. specializes in producing all kinds of trench cover, welcome to order. Steel grating trench cover how much a square meter | Hangzhou trench cover | Air gold mesh provided by Hebei Airlines Golden Screen Products Limited. Gold mesh Hebei Airlines Co. (www.hbhangjin.com) strong, credible, Hebei Hengshui wire mesh industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Air gold mesh and you hand into the brilliant, for a better future!