cangzhou zhilicheng pipe equipment co., ltd. is professional in the production of prefabricated direct buried thermal insulation pipes all year round, with specifications and thickness in accordance with national industry standards, and its products are widely used in major urban construction projects such as electricity and heating. prefabricated direct buried thermal insulation pipe manufacturer hotline: 18031771977

cangzhou zhilicheng pipe equipment co., ltd. is professional in the production of prefabricated direct buried thermal insulation pipes all year round, with specifications and thickness in accordance with national industry standards, and its products are widely used in major urban construction projects such as electricity and heating. prefabricated direct buried thermal insulation pipe manufacturer hotline: 18031771977

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