HEBEI CHENG DA PIPES CO.,LTD
1.Non oxygen seepage,and alage growing prevented
2.Small coefficient of dilatation and no deformation when surface mounted
3.High rigidity,high tenacity and resisitance to high temperature
4.UV resistance to prevent material aging
5.Heat preservation and energy saving,higher economical efficiency
6.Firm connection,no leakage and convenient installation
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