雙頭螺栓
關于雙頭螺栓:
執(zhí)行標準(Standard):
GB/T897-901,
SH3404,
HG20613,20634 ,
DIN938,939,949,
IFI136,528,
ASTMA193/193M, A320/320M
強度等級(Grade):
8.8,10.9,2B,35CM,B7,B7M,L7,L7M
規(guī)格(Size):
M6-M100,1/4"-4"
材料(Material):
碳鋼(Carbon Steel),合金鋼(Alloy Steel)