Pipes THREE-LAYER POLYPROPYLENE PIPES REINFORCED WITH FIBER GLASS Armlen MIDDLE LAYER polypropylene Armlen Armlen PP GF 20-1EX Armlen PP GF 30-1EX Armlen PE-2AFX pp Армлен Армлен ПП СВ 20-1К Армлен ПП СВ 30-1К INTERNAL SEWEGE Armoflen BARIUM SULFATE CONCENTRATE