| 1. | 700 if grade a is not available , grade b will do
如果一等品无货，二等品也可以。 |
| 2. | Hexagon flange bolts - heavy series - product grade b
六角法兰面螺栓加大系列细杆b级 |
| 3. | P > 700 if grade a is not available , grade b will do
如果一等品无货，二等品也可以。 |
| 4. | Examination for registration as a grade b electrical worker
B级电业工程人员注册考试 |
| 5. | Hexagon head bolts - reduced shank - product grades b
六角头螺栓细杆b级 |
| 6. | Cup head square neck bolts with small head and short neck - product grade b
小半圆头低方颈螺栓 |
| 7. | . b hexagon thin nuts unchamfered - product grade b
六角头薄螺母 |
| 8. | . b hexagon thin nuts unchamfered - product grade b
六角头薄螺母 |
| 9. | Railway fixed equipment . wide hexagon nuts , grade b . hl nuts
铁路固定设备. b级宽六角螺母. hl螺母 |
| 10. | Double end studs clamping type - product grade b
等长双头螺柱 |
