热绝缘的钢管

1.Heat Insulating Steel Pipe hashigh insulating efficiency, with low heat lost. Itsheat insulation efficiency has been increased by 4-9 times than normal steel pipes. 2.Heat Insulating Steel Pipe has a strong ability of waterproof and corrosion-resistant, which can be directly buried underground or in water with rapid and simple construction, lower cost and less area corvering. 3.Heat Insulating Steel Pipe owns a good corrosionresistance and impact resistance even in low temperature, so it can be directly buried in permafrost. 4.It has long service life, whitch can reach 30-50 years. 5.Low maintenance cost.