| 1. | Hexagon flange bolts - heavy series - product grade b
六角法兰面螺栓加大系列细杆b级 |
| 2. | Examination for registration as a grade b electrical worker
B级电业工程人员注册考试 |
| 3. | Fasteners . threaded rods . product grades a and b
紧固件.螺纹杆. a和b级产品 |
| 4. | Hexagon slotted and castle nuts , style 1 - product grades a and b
1型六角开槽螺母a和b级 |
| 5. | Manhole tops classes a 15 and b 125 , circular ; summary
A级15和b级125圆形人孔顶部.综述 |
| 6. | Manhole tops classes a 15 and b 125 , circular ; covers
. a级15和b级125圆形人孔的顶部.盖 |
| 7. | Hexagon nuts , style 2 - product grades a and b
2型六角头螺母. a和b级产品 |
| 8. | Hexagon nuts , style 1 - product grades a and b
1型六角头螺母. a和b级产品 |
| 9. | Richard : so they are like b - grade movies
理查德：这么说它们像是b级片？ |
| 10. | Low - voltage fuses - part 11 : class a , class b fuses
低电压熔断器.第11部分: a级和b级熔断器 |
