Changsha Xiangjia Metal Material Co.,ltd. (hereinafter to be referred as Xiangjia Steel) found in mid-1990?? , is a subsidiary of HSS GROUP. Located in Tianjin, the second biggest port in China, Xiangjia Steel enjoys convenient transportation facilities. With decades of development, it is today one of the leading producers of galvanized steel pipe, ERW welded steel pipes and hollow sections in China.  Xiangjia Steel has 6 ERW steel pipes production lines, 2 hot dip galvanizing lines and 4 hollow sections production lines. Annual production reaches 80,000 tons totally. Its ERW tubes??sizes range from OD21.3mm to OD406.4mm; square tubes are from 10X10 to 500X500 and rectangle tubes from 20X10 to 200 X 400. The thickness can be from 1.0mm to 20mm. These products are manufactured in conformity with standards of ASTM A53, BS 1387,BS1139??DIN 10219, JIS G3444:2004??PI 5L etc..  Xiangjia Steel has been certified under ISO 9001:2000.Its Products  have been exported to Asia, Europe, America Africa and Oecania, including fifty countries or regions. With more and more customers get to know Xiangjia Steel pipes, its quality are recognized by more people.  Any of your inquiry will be highly appreciated. We will do our utmost to offer you first level service, best quality products and most favorable price .  Looking forward to the successful cooperation with you and let?? have mutual benefit.