Q 622-2012
Hexagon outside head cone plugs with magnetic core(dz>NPT1)
QC/T 383-2013
Hexagon outside head cone plugs with magnetic core(dz≤NPT1)
QC/T 383-2013
Hexagon outside head cone plugs with magnetic core(dz>NPT1)
Q 623-2012
Hexagon magnetic screw plug
Q 624-2012
Hexagon socket pipe magnetic plugs