Q 618B-1999
Hexagon taper plugs
Q 618B-1999
Hexagon semi-tubular taper plugs
QC/T 381-1999
Hexagon taper plug
QC/T 381-1999
Hexagon semi-tubular taper plug
QC/T 381-2013
Hexagon taper plug
QC/T 381-2013
Hexagon semi-tubular taper plug
Q 622-1999
Hexagon outside head cone plugs with magnetic core(dz≤NPT1)
Q 622-1999
Hexagon outside head cone plugs with magnetic core(dz>NPT1)
QC/T 383-1999
Hexagon outside head cone plugs with magnetic core(dz≤NPT1)
QC/T 383-1999
Hexagon outside head cone plugs with magnetic core(dz>NPT1)
Q 618B-2012
Hexagon taper plugs
Q 618B-2012
Hexagon semi-tubular taper plugs
Q 622-2012
Hexagon outside head cone plugs with magnetic core(dz≤NPT1)
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)