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    Craftsmanship, Innovation Cast iron expansion Product knowledge points:：The directly buried ripple compensator is mainly used for axial compensation of the directly buried pipeline, and has super bending resistance, so it does not consider the influence of the sinking of the pipeline. The directly buried ripple compensator realizes the free expansion compensation of the corrugated pipe under the protection of the shell and the guide sleeve, and the other performance is the same as that of the ordinary ripple compensator. The structure design of the directly buried compensator is strict, stable operation, long service life, suitable for the buried laying of the installation pipeline, and the sealing work can be used for more than 30 years without the need for personnel maintenance.
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