| 1. | All field splices were bolted using astm a325 hex head bolts .
所有现场拼接都用美国材料试验协会的A325六角形头螺栓。 |
| 2. | T - head bolts hammer head bolts for railway vehicles
铁路车辆用t形头螺栓锤头螺栓 |
| 3. | Screws . slotted " poelier " head . symbol rl s
螺钉.有槽宽园形头螺钉.符号rl s |
| 4. | Specification for mushroom head aluminium alloy rivets
菌形头铝合金铆钉规范 |
| 5. | Bolt , pan head , current use , nf l 22 - 070 cross recess
有nf l22 - 070十字槽常用皿形头螺栓 |
| 6. | Holes and traps for t - head bolts - design standard
T形头螺钉的安装孔和接触凹面.设计标准 |
| 7. | Bolt , pan head , current use , nf l22 - 072 cross recess
有nf l22 - 072十字槽的常用皿形头螺栓 |
| 8. | Railway fixed equipment . tee - head bolts
铁路固定设备. t形头螺栓 |
| 9. | Tools for pressing - punches with cylindrical head and reduced shank
冲压工具.带圆柱形头和缩减柄的冲头 |
| 10. | Bolt , pan head , amagnetic with cone point nf l 22 - 072 cross recess
有nf l22 - 072十字槽锥顶磁性皿形头螺栓 |
