QC/T 379-2013
Tapered square head bolts
QC/T 379-2013
Square head bolts
Q 611-1999
Slotted cone plugs
Q 619-1999
Inner hexagon conical screw plugs
DIN 906-1992
Hexagon socket pipe plugs
QC/T 378-2013
Inner hexagon conical screw plug
JB/ZQ 4447-2006
Hexagon socket screws plug with 60°sealed pipe thread
QC/T 884-2011
Hexagon socket pipe magnetic plugs
QC/T 382-1999
Slotted cone plug
Q 614B-1999
Square head bolts
Q 614B-1999
Square head semi-tubular bolts
QC/T 379-1999
Square head bolts
QC/T 379-1999
Tapered square head bolts
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
QC/T 378-1999
Inner hexagon conical screw plug
