Side view of wing screw with adjustable thread length.
螺纹长度可调整的翼形螺钉的侧面图。
Side view of Roundhead screw with adjustable thread length.
螺纹长度可调整的圆头螺钉的侧面图。
Side view of square head bolt with adjustable thread length.
螺纹长度可调整的平头一字槽螺钉的侧面图。
Aluminum alloy shaft and plastic head, shaft length could be adjustable.
铝合金杆身，头部为塑料杯。杆身可伸缩。
Leg support length is adjustable.
腿托长度可调。
Leg support length is adjustable.
腿托长度可调。
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