1.Easy installation and reduce construction costs 2.Construction cost savings, compared to the same specifications of the traditional cast iron pipes, can significantly reduce the overall cost 3.quality follow GB/T5836.1-2006 and GB/T5836.2-2006 ,meet to export standards. 4.Use in building drain pipe project and residential quarter projects. 5.complete specification and model for your choose. 6.Length:4 meters each one size(mm)thickness(mm)502.0752.31102.41102.81103.01103.21603.21604.02004.02005.0