Area (mm2)
JIS G 3137 & CNS 15898
7.1 MM 9.0 MM 10.7 MM
B1
Not prescribed
SBPD 930/1080
1080
930
5.0
2.5
7.1
40.0
C1
SBPD 1080/1230
1230
9.0
64.0
D1
SBPD 1275/1420
1420
1275
10.7
90.0