POWERDUCT SERIESEXTRUDED ALUMINUM HOSING WITH COOLING FIN FULLY TYPE TESTED BUSDUCT SYSTEM FIRE RESISTANCE (FR) SYSTEM IEC60331 BS6387:1994(C,W,Z) EN50267-2-1/-2:1998 IEC 60754-1/-2:2011IEC 60529IEC61439-6UL857CSA857CSA C22.9NEMA BUIJIS 8364ISO 9001 :2008