Polypropylene 3PP

   3PP mainly meaning every pipeline has three PP layer：The first layer is FBE（50-100um），The second layer is AD（250～400um）,The third layer is PP(1.4～4.0mm)。Three kinds of material mixed together one organic whole, become solid combination with steel pipe forming excellent anti-corrosion layer,use temperature up to 110 degree.

    2PP mainly say every pipeline has two PP layer: the first layer is AD and the second is PP, two material mixed together one organic whole, the thickness of every layer is same as 3PP. 

    3PP produce process as follows: