|  | 1. | Specification for unified machine screws and machine screw nuts 统一机用螺钉与机用螺母规范
 
 
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|  | 2. | Slotted and recessed head machine screws and machine screw nuts 有槽和凹槽头机器螺钉和机器螺母
 
 
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|  | 3. | Specification for machine screws and machine screw nuts - metric series 机用螺钉和螺母规范.米制系列
 
 
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|  | 4. | Machine screws and machine screw nuts 机用螺钉和机用螺母
 
 
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|  | 5. | Curved - face bayonet ring couplings for rolling stock part 1 : screw nuts 机车车辆用曲面卡套式管接头.第1部分:锁紧螺母
 
 
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|  | 6. | Railway rolling stock . grade a . slotted countersunk head screws nuts . symbol fp 铁路车辆.开槽沉头螺钉螺母.级.符号
 
 
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|  | 7. | Bolts , screws nuts 螺栓,螺帽及螺丝
 
 
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|  | 8. | Usting screw nut 调距螺母
 
 
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|  | 9. | Fasteners . bolts for corrugated steel pipes . part 0 : bolts related prescriptions screws nuts 紧固件.波纹钢管用螺栓.第0部分:与螺栓有关的说明
 
 
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|  | 10. | Railway rolling stock . grade a . slotted or notched raised countersunk head screws nuts . symbol fbp 铁路车辆.开槽或开口的半沉头螺钉螺母.级.符号
 
 
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