DIN 797-1970
Special Foundation bolts-Rough pole double head bolt with hole and cone end
DIN 797-1970
Special Foundation bolts-Rough pole double head bolt with cone end
DIN 797-1970
Special Foundation bolts-Fine rod double head bolt with hole and cone end
QJ 2389-1992
Double end studs (clamping type)
QJ 2389-1992
Double end studs (clamping type)—L≤2b Non full thread
JB/T 4707-2000
Type A double end studs
JB/T 4707-2000
Type B double end studs
JB/ZQ 4324-2006
Type A double end studs b1=1d
JB/ZQ 4324-2006
Type B double end studs b1=1d
JB/T 2773-1992
PN16~32MPa Double end studs
JB/T 2774-1992
PN16~32MPa Stepped Double end stud
JB/T 1308.14-1999
PN 250 MPa Double end studs
JB/T 1308.15-1999
PN 250 MPa Stepped Double end stud
JB/T 8007.4-1999
Double end bolts
HG/T 21573.2-1995
Type BT double end studs with hole-Type I
HG/T 21573.2-1995
Type BT double end studs with hole-Type II
HG/T 21573.2-1995
Type BT double end studs-Type III
HG/T 21573.2-1995
Type BS double end studs with hole-Type I
HG/T 21573.2-1995
Type BS double end studs with hole-Type II
HG/T 21573.2-1995
Type BS double end studs-Type III