1,Polyurethane hose with copper plated steel wire 2,2"~12" I.D 3, Wall thickness from 0.4~1.2inch 4,factory was built in 1989 5003 Polyurethane(PU) Hose Materials: Polyurethane,TPUFeatures: 1 A Copper plated steel helix embedded between two layers of polyurethane;2 Transparent wall, wall thickness from 0.4mm~1.2mm;3 Extremely flexible and compressible: 1:4;4 Excellent internal and external ...