您好，我们是河北钢管制造有限公司。我们的产品主要有：无缝钢管，ERW管，镀锌管，黑管，等等...

主要产品/业务: Our main products series include seamless steel pipe ,welded pipe (ERW and SAW ), black pipe, galvanized pipe , oil casing pipe ,elbow ,flange and pipe fittings .