Trench cover how to control the quality, we mainly three aspects to this: one, the better off raw materials: steel raw materials into the factory inspection is the most important part, which determines the final shape trench cover and performance, the company has strict quality inspection standards, the choice of quality raw materials to ensure the field frequency of performance and quality. 2, strictly control the production and design aspects, according to the company's production standards, not a mistake. The introduction of advanced production equipment and production technology, improving the quality of existing products, trench cover various trench cover model is complete, efforts to develop new products. And according to market needs galvanized trench cover how to set construction, develop a detailed product development process to ensure the completion of the development of new products in the shortest possible time! 3, good finished product delivery inspection G303 / 30/100 trench cover, after the completion of the company's finished, there will be a professional inspector for quality testing, to detect whether a product specification, such as the product failed to be re-production. Gold mesh Hebei Airlines Co., Ltd. is a large scale in the northern trench cover production-oriented enterprises, products throughout the country, and won praise. "High standards, fine, zero defect" is our aim trench cover production, we will continue to produce the high-quality trench cover! Steel grating trench cover raw materials used are mostly low-carbon steel, the main raw material from the drain cover flat, twisted steel, stainless steel, so the steel market price fluctuations will have a direct impact on production costs. Steel grating trench cover is made from mild steel welding, need to go through the hot-dip zinc processing so that the corrosion resistance of strengthening the trench cover, trench cover to extend the life of the average production of steel grating from hot galvanized, cold galvanizing surface treatment is completed. Air magic grid mill specializing in the production of steel grating trench cover, welcome to buy. Municipal parks trench cover sales | Air gold mesh (certified) | trench cover provided by Hebei Airlines Golden Screen Products Limited. Gold mesh Hebei Airlines Co. (www.hbhangjin.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. Hang leader in gold mesh with the staff warmly welcome all inquiries negotiations to create gold mesh Hang a better future.