1) certficate : COC , ITS ,SGS
2) Length: 3M
3) Standard: EN 877
4) Material: gray cast iron
5) Applications: construction drainage, pollution discharge
6) Features: Flat and straight; High strength and density without defect; Easy to
install and maintain; Long lifetime, fireproof and low noise rate.
http://www.dinggin-castironpipes.com