Jianzhi Group participated in the drafting and revision of GB/T3287


  Jianzhi Group focuses on quality management and enterprise standardization.
In July 2009, as the main drafting unit of the national standard GB/T3287 "malleable cast iron pipe connector", participated in the drafting and revision of the standard.


National standard "malleable cast iron pipe connector" review meeting venue

Company quality minister Li Guolin (left) engineer spoke at the meeting


Engineer Li Guolin, Minister of Quality of the Group, explained the detection and determination methods of pipe thread axis angle deviation for the participating experts at the national standard review meeting of "Malleable Cast Iron Pipeline Connectors" and incorporated them into the national standard revised in 2009.