Composite FRP cable protection pipes 1.GB/T19001-2000 ISO9001:2000 2.lightweight,fireproof,anticorrosion,high strength Composite FRP cable protection pipes1.GB/T19001-2000,ISO9001:20002.light weight,fireproof,anticorrosion,high strength,high temperture resistance main features COMPOSITE FRP CABLE PROTECTION PIPES1.hightensile buried derectly under the traffic lane,without adding the suspect ...