After galvanized steel grating produced, to be anti-rust treatment. There are hot-dip galvanized and electro-galvanized two kinds. Hot dip galvanized steel grating, also known as hot-dip galvanized steel grating: He is at a high temperature to melt the ingots in put some supplementary material, then dipped galvanizing bath metal structure that is attached to a metal member zinc coating layer. HDG has the advantage of his strong anti-corrosion, zinc coating adhesion and hardness better. After the product has increased weight galvanized steel grating serrated teeth, we often say that the amount of zinc, also mainly for hot-dip galvanizing for the. Cold-plated steel grating, also known as galvanized steel grating: that the zinc salt solution by electrolysis, iron and zinc ions were replaced to reflect, in general without heating, the amount of zinc rarely encountered moist environment is very easy to rust . Because of the different amounts of zinc so these two products will there is a big price difference. Macro steel mill production grid drain cover size accuracy, remind customers to read the following carefully before using the water ditches cover construction points: 1, ditch measure to trench cover lofting consistent with the actual gutter and, measured on the basis of Plan map and construction skills tests, request, lofting ditches baseline orientation and extent of baseline and apply written and field tests, skills tests, materials and ways to measure points entrusted site foreman and construction staff. 2, row ditch ditch cover plate device application prefabricated cover appearances after delivery point stacking. After the row itself concrete ditch ditch, ditch cover the front row unit, measuring construction segment classes have been ranked ditch cover device substrate stop checks, stop site for unqualified repair mortar toothed chisel or steel grating specifications, ensuring row ditch cover of the unit base formation toothed steel grating prices, elevation plans fit the request. Drain ditches smooth cover of the unit, do not swing. Our factory specializes in drain cover, trench cover, quality assurance, reputation first. Staircase toothed steel grating _ Hong special wire mesh (certified) _ toothed steel grating provided by Anping Wire Mesh Products Co., Ltd. Hong special. Anping Wire Mesh Products Co., Ltd. Hong special (www.ggb888.net) (www.ggb666.com) Hebei Hengshui, the wire mesh of the leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness , and satisfy customer needs. In Hong special wire mesh leadership with the staff warmly welcome all inquiries negotiations to create a macro special wire mesh better future. You can also access (www.ggb666.com/supply_details_45666150.html), for more information about the company.