... Machine tool, machine building,electric insulation protection system, electric automatic control system,public traffic equipment, metro,electric locomotive and air ... factory.♣ 127 workers and 12 engineers.♣ Quality control system. ♣ Delivery On time. Product detail: Item No.Nominal SizeI. ... ,etc.Material has polyamide6 and polyamide 12 High quality polyamide flexible conduit with UL certification