How should trench cover quality control, we are mainly three aspects to this: one, the good customs of raw materials: steel raw materials into the factory inspection is the most important part, which determines the trench cover the final shaping 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 my company's production standards, not a mistake. The introduction of advanced production equipment and production process, improve the quality of existing products, trench cover trench cover specifications, working to develop new products. And in accordance with market needs, develop a detailed product development process to ensure the completion of the development of new products in the shortest possible time! 3, good finished factory inspection, after I finished the completion of trench cover packaging, will have a professional inspector for quality testing, to detect whether a product specification, such as the product failed to be re-produced. Gold mesh Hebei Airlines Co., Ltd. is a large scale in the northern trench cover production-oriented enterprises in Anping trench cover advantage, product throughout the country, and won praise customers. "High standard, fine, zero defect" is the aim of our production, we will continue to produce the high-quality trench cover! Galvanized trench cover can be used long gold mesh Hebei Airlines Co., Ltd. is a production, research and development and sales in one of the large steel grating business I operated for many years, the products are sold throughout the country, and has a good reputation. About galvanized trench cover useful life, let's make a presentation for you. HDG also known as hot-dip galvanized, is a method of metal coating layer steel structures immersed in molten zinc was obtained, with a galvanized coating uniformity, strong adhesion, long life and other advantages. Galvanized trench cover compared to other products also have the advantage of a long service life. Use galvanized trench cover three years of cash in the form of: 1. Decorative useful life - hot dip galvanized steel grating surface appear to fade, meal of, cracking, partial loss and other defects, has not yet reached blockbuster film lose the protective effect degree. 2. Use a renovated former life - hot dip galvanized steel grating surface coating of rust and other defects occur most, will affect the life time of the substrate further use. 3. Limit the use of life - hot dip galvanized steel grating long-term use without renovations until the severe corrosion phenomenon. Galvanized trench cover useful life primarily by their links and surface zinc layer is damaged determined specifically that air humidity, and pH. If appropriate use of hot dip galvanized steel grating pH environment, the acidity is generally greater than the PH6, alkalinity less than PH12. Dried wild, their life span of 70-80 years, the gentle ocean up to about 40-50 years, 20-30 years about the industry in general. Provided that they face the zinc layer is not destroyed force. I am in terms of production and sales of steel grating has 10 years of experience, and so far no customer feedback, said the issue galvanized trench cover the time period of years, as well as customer feedback, said the product is still as good as new. In short trench cover, galvanized trench cover even under very harsh environment, but also to have at least 20 years of age, so please be assured of our customers, we will provide you with quality products, welcome to inquire order. Trench cover trench cover packaging _ _ Hang gold trench cover provided by Gold Wire Mesh Products Co., Ltd. Hebei Airlines. Hebei Airlines Gold Wire Mesh Products Co. (www.hbhangjin.com) strong, credible, Hengshui in Hebei wire mesh industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Airlines gold mesh and you work into the brilliant, for a better future!