XINXING PIPES GROUP HANDAN ADVANCED MATERIALS CO., LTD (Called as XINXING GRATING also ) belong to Xinxing Ductile Iron Pipes Co.,Ltd.，which originated from the 2672 Engineering Headquarters of the People’s Liberation Army which established in 1971 and listed on the Shenzhen Stock Exchange in 1997.The company is the core enterprise of Xinxing International Group that supervised by State-owned Assets Supervision and Administration Commission of the State Council(SASAC),the company is an international leading R&D manufacturer of pressed-welded steel gratings and accessories. The company introduced Japan’s fully automatic steel grating production line in 1994 and officially put it into production. After years of development, it now has 4 flat steel production lines, 17 advanced pressure welding production lines, 3 hot-dip galvanizing production lines, 1 railing and light steel structural parts production workshop, annual production capacity of steel grating and accessories reaches 120,000 tons. At present, the company can produce flat steel 19*3mm~150*10mm, spacing 12.5mm~100mm full specification of steel grating products. At the same time, the company has independent intellectual property rights for the R&D and design of pressure welding machines, nationally recognized enterprise technology R&D center, and a post-doctoral mobile workstation. It is a ntegrated supplier of steel grating that integrates from equipment R&D to flat steel production, grating processing, hot-dip galvanizing and railway logistics and one of the major drafters units of the steel gratings industry standard YB/T4001.1-2019. Xinxing steel grating products are widely used in many fields such as petrochemicals, municipal engineering, etc. The domestic market share is in the leading position in the industry, and about 30% of the products are sold to more than 30 countries and regions in the world . It is currently the largest domestic export manufacturer .