Hi-Lock pins and nuts are used at helicopters widely for their hi-strength, high fatigue values, build-in preload, self-locking and other characteristics.
高锁螺栓、高锁螺母具有高强度、高抗疲劳、预紧力安装、自锁等优良特性，它们在直升机结构中广泛应用。
Hi-Lock pins and nuts are used at helicopters widely for their hi-strength, high fatigue values, build-in preload, self-locking and other characteristics.
高锁螺栓、高锁螺母具有高强度、高抗疲劳、预紧力安装、自锁等优良特性，它们在直升机结构中广泛应用。
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