QC/T 381-2013
Hexagon semi-tubular taper plug
QC/T 378-1999
Inner hexagon conical screw plug
Q 620-1999
Magnetic core
Q 621-1999
Square groove tapered magnetic plugs
QC/T 384-1999
Square groove tapered magnetic 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 623-1999
Hexagon magnetic screw plug
QC/T 385-1999
Hexagon magnetic screw plug
Q 614B-2012
Square head bolts
Q 614B-2012
Square head semi-tubular bolts
Q 615-2012
Slotted columnar fine thread plugs
Q 616-2012
Slotted plunger plugs
Q 617B-2012
Hexagon head plugs
Q 618B-2012
Hexagon taper plugs
Q 618B-2012
Hexagon semi-tubular taper plugs
Q 619-2012
Inner hexagon conical screw plugs
Q 620-2012
Magnetic core
