Tianjin Sehao Steel Co.,Ltd. is located in Jinghai Tianjin city. the most productive steel base in China.a comprehensive enterprise. Sehao steel stand by the 104 and 205 national highway. where is just 40 milimeters to Tianjin Xingang Port.With decades of development.It is today one of the leading producers of galvanized steel pipe.black welded steel pipe and hollow sections in China. Sehao Steel has been certified under ISO9001:2000.Tts products have been exported to Asia.America.Africa.Europe and Oceania.including fifty countries or regions.With more and more customers get to know Sehao Steel pipes.it gained positive feed backs and praises. Sehao Steel has 6 ERW steel pipes production lines. 3 hot dip galvanizing lines and 5 hollow sections production lines. It has over 300 staffs including 50 senior and secondary technicians. 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 BS 1387.BS1139.ASTM A53.BS 1387.BS1139.API 5L.DIN 10219.EN10240:1998.JIS G3444:2004 etc.It products are widely applied to water.sewage.gas.air.heating steam and low-pressure liquid transportation pipes. wire casing.scaffolding.fire use for metal structural purposes. Sehao Steels enterprise mission is:Quality is the first. customer is supreme. Enterprise philosophy is: People-oriented harmonious innovation.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. Welcome u coming to visit our factory for a nice long-term business relationship.