Insulation friction in the pipe thermal expansion, well counteract thermal expansion forces can effectively restrict the pipeline along the axial elongation, improved safety Buried heating pipe.
保温层摩擦力在管道受热膨胀时，能很好的抵消热膨胀力，可以有效地限制管道沿轴向伸长，提高了供热直埋管道的安全性。
Insulation friction in the pipe thermal expansion, well counteract thermal expansion forces can effectively restrict the pipeline along the axial elongation, improved safety Buried heating pipe.
保温层摩擦力在管道受热膨胀时，能很好的抵消热膨胀力，可以有效地限制管道沿轴向伸长，提高了供热直埋管道的安全性。
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