Tianjin Lead steel pipe factory is a big manufacturer of Galvanized steel pipes and ERW welded steel pipes.The out put is 600000Mt per year.We have gain the ISO9001-2000 quality certificate.We can supply BS1387 and DIN2440 standard pipes.We have export to more than 10 countrys like Philippine, Vietnam, Thailand, Yemen, UAE, Nigeria, Benin, Belgium, Colombia, xxxxx