This standard applies to continuous cast iron straight pipes with stepped lip rubber ring joints (hereinafter referred to as cast iron pipes) for water and gas pipelines.
GB/T 8714-1988 history
2008GB/T 6483-2008 Soft mechanical joint grey cast iron pipe
1988GB/T 8714-1988 Grey cast iron pipes with rubber ring of ladder-lip-shaped
GB/T 8714-1988 Grey cast iron pipes with rubber ring of ladder-lip-shaped was changed to GB/T 6483-2008 Soft mechanical joint grey cast iron pipe.