主要用于 10.9 级高强螺栓。

It is mainly used for 10.9 grade high-strength bolts.

使用压力：150MPa。

Maximum service pressure: 150MPa

自动快速回程机构设计，大大减轻劳动强度。

The design of automatic quick return mechanism greatly reduces labor intensity.

超行程红色警戒指示线，三级安全保护，确保操作者安全

Ultra red red warning line, three level safety protection to ensure operator safety.