GB3087低中压锅炉管、GB6479化肥专用管、GB9948石油裂化管 质量 物美价优!望请选购!
产品 材质 规格 价格
GB3087低中压锅炉管 20g 41*3.6 4257/吨
GB3087低中压锅炉管 20g 82*4.4 4287/吨
GB3087低中压锅炉管 20g 157*4.5 4297/吨
www.gbwfgg.com/chanpin/2011091428.html
www.gbwfgg.com/chanpin/2011091427.html
www.gbwfgg.com/chanpin/2011091426.html
www.gbwfgg.com/gbgl/
www.gbwfgg.com/gbhf/
www.gbwfgg.com/gbsy/