Safety bolt is set on the valve body, when the pressure in the cylinder is too high, safety diaphragm will burst automatically to ensure the safety accident cases, for the safety of the bottle.

瓶阀体上设安全螺栓，当气瓶内压力过高时，安全膜片将自动爆破泄压以确保意外情况下瓶的安全。

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Anchor/support bolt holes are located in base of body.

固定器/支架螺栓孔位于阀门的基座。

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A plastic pallet comprises a plastic upper and lower pallet body component with bolt connection.

塑胶托盘，由塑胶上、下托盘体组件通过螺栓连接构成。

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The swan underwent emergency surgery to remove part of the bolt which had snapped off inside its body.

BBC: Dorset swans are speared in "cowardly" crossbow attack

The RSPCA said part of a crossbow bolt lodged inside the male swan's body and missed its heart "by millimetres".

BBC: Dorset swans are speared in "cowardly" crossbow attack