• Sand casting cast iron pipe
• Cold galvanized cast iron pipe
• Galvanized steel pipe (galvanized steel pipe was also used as water supply pipe instead of galvanized steel pipe in the early stage, but UPVC pipe is not commonly used in water supply pipeline engineering at present, and PPR pipe and PE pipe are mainly used for water supply pipe)
UPVC pipe has become an ideal choice for building drainage system because of its corrosion resistance, superior fluid characteristics, light weight and easy installation.
