采用自制螺栓拉拔器对索夹螺栓进行预紧，更加精确地控制了索夹螺栓的预紧力，确保索夹对主缆的握紧效果。
We use homemade bolt puller to preload the clamp bolt, which more accurately controls the preload of the clamp bolt, and ensures the clamp's holding effect on the main cable.
SATEC系列300LX兼有自动伸长计和气动握紧，及3300系列试验器的特点。
SATEC series 300 LX, featuring an Automatic Extensometer and Pneumatic Grips, and 3300 series testers.
SATEC系列300LX兼有自动伸长计和气动握紧，及3300系列试验器的特点。
SATEC series 300 LX, featuring an Automatic Extensometer and Pneumatic Grips, and 3300 series testers.
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