conical pointed grub screw的意思|示意
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锥形尖grub螺钉
conical pointed grub screw的网络常见释义
锥形沉头螺钉 锥形沉头螺钉 conical pointed grub screw 开槽沉头螺钉 Slotted countersunk flat head screws ; slotted countersunk head screw ; slotted countersunk screw ; slotted...
锥端无头螺钉 ... 末端无孔导管 closed end catheter tip 锥端无头螺钉 conical pointed grub screw 空虚, 无知 emptiness ...