double seal manhole cover ductile iron manhole cover

Ductile iron Manhole cover is one of the products of ductile iron. Spherical graphite is obtained from nodular cast iron through spheroidizing and inoculation treatment, which effectively improves the mechanical properties of cast iron, especially the plasticity and toughness, thus obtaining higher strength than carbon steel. Ductile iron is a kind of high-strength cast iron material developed in the 1950s. Its comprehensive performance is close to that of steel. It is precisely based on its excellent performance that it has been successfully used to cast some parts with complex stress and high requirements for strength, toughness and wear resistance. Ductile iron has rapidly developed into a very widely used cast iron material, second only to gray cast iron. The so-called "replacing steel with iron" mainly refers to nodular cast iron.

    Wuhan Xincheng Metals Minerals Trade Co,Ltd.(Former  Wuhan Hengsheng Trade Co.,Ltd.) is a international trade company specialized in Import & export which was established in 2005.

    Our company locate in  Wuhan city,Hubei--beside of the third longest river,the Yangtse River,and it's also well known of its well connected traffic as well as the important traffic hub of China

   With years of developing,our export & import volume increasing firmly and annually,cover more and more products range and International markets.,The major products are:hardware and tools, construction material,automobile parts,covers from nails,steel wire,link-chain,shovel,toolbox,painting brush,garden tools,steel pipe,flange,wire mesh,fiberglass sheet,steel sheet,aluminium sheet,car light and so on.

   Our service purpose is "Credit first and customer foremost" We consider comprehensive and thoroughly for our customers,uphold the firm attitude of being responsible for our  products,which make us won common compliment and affirmative of customers from south-east Asian,Middle East,American and Africa.

    Comply with the current developing trend,there will be new challenges and opportunities each day.The global hardware and construction markets are waiting for us to exploit.Strong human resources,rigorous management and operating idea are our foundation,adding accumulation of experiences and the tireless pursuit of future,continuous innovation in all aspects to provide you better quality,more economic price and practical products,Welcome all friends pay a visit,guidance us and discuss  business with us.

    Development goals: To become a large-scale enterprise incorporating trade and production,has wide product range and widely distributed customers form the global.

    Operating principle:"Reasonable price,High quality ,High efficient service"