The air tightness of the nodular graphite pipe is better after installation, and the anti-corrosion performance can also be improved through various anti-corrosion methods; From the hydraulic performance point of view, ductile iron pipe can achieve greater runoff; From the perspective of comprehensive installation and maintenance costs, ductile iron pipes have better cost performance. Inner wall zinc spraying, cement mortar anti-corrosion materials, etc., are mainly used for municipal, industrial and mining enterprises water supply, gas transmission, oil transmission, etc., and are the first choice of cost-effective water supply pipelines.

CFIC, China Precision Casting International Corporation, is one of the largest suppliers of building materials in China. Founded in 2016. CFIC's business scope includes the manufacturing and sales of building materials.