YIER INDUSTRIAL LIMITED Manufactures and supplies ductile iron pipe , DI fittings for DI pipe/UPVC pipe /PE pipe, pipe repair ,casting valves and manhole cover&grating , casting surface box , and other castings according to the drawings or samples provided by the customers .

    YIER products are designed and manufactured to comply with relevant industry standards-ISO2531 /EN545/EN 598 /BS4772 AND AWWA .