... Brush 1:Made of Nylon,Steel,Brass. 2:Designed for condenser or cooler cleaning 3:All kind size offered. Wire Twisted Cleaning ... stock:PA,PBT,PE,PP,PVC,steel,copper wire,palm fibre,horsehair and hair of various plants and animals.Application line diameters ... :for PA,PBT,PE,PP,PVC Max at 1.2mm,for steel wire,copper wire ...