cast iron pipe fittings wyeUse range: building install, dirty water and rainwater exhausting, exchanging dirty air with pure air, facilities of washing room and sewerage pipes, etc. Centrifugal casting, compact structure, free from pinhole porosity and slag, smooth surface and even wall thickness, anticorrosion, defend the noise. Flexible joint, coupling facilitates installation and repair work, the exterior shape is beautiful. Lighter weighter compared with sand- mould casting pipes and its laying length increases 20- 30% consequently.