Shandong sd material co.,ltd

We are a manuactuerer and having own trading company for ppgi,gi . the goods had adopted iso9001:2000 quality system authorities and exported to more than 40 countries. all the based coils for ppgi are from our sister company:shandong guangyuan energy-saving material co.,ltd. we could give you our best price and good quality. pls don't hesitate to contact with us if you have any enquiries on ppgi or gi.