Home / Standards / GBT 802.5-2009 GBT 802.5-2009 Non-metallic insert hex lock cap nut — Welding type 非金属嵌件六角锁紧盖形螺母 焊接型 Standard Type GBT ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A