Kä ye looi: Steel cover steel steam insulation bending tube (glass cotton, rock cotton, silicate aluminum silicate calcium composite insulation), polyurethane foam insulation bending tube (black jacket, yellow jacket), gas 3pe anti-corrosion steel tube, epoxy coal asphalt anti-corrosion bending tube (one cloth two oil, two cloth three oil, one cloth three oil, two cloth four oil, three cloth five oil, etc.), single layer double FBE epoxy powder anti-corrosion bending tube, IPN8710 drinking water anti-corrosion bending tube, cement mortar lining anti-corrosion bending tube and other various anti-corrosion insulation pipelines.