六是塔筒结构为防止平衡重自由落体坠落提供了理想的支撑载体，确保了失载保护的万无一失。
The tower tube structure to prevent counterbalance freefall provides ideal support, to ensure that the load loss protection is on the safe side.
这款高性能的靴撑保持你的靴子外观像新的一样，保护靴筒的外形；
Keep your boots looking new and protect their shape with these high quality boot trees.
为保护炼胶机主要零部件，当机器过载时不受损坏，在辊筒轴承前端设有安全装置。
For the protection of the refined rubber machine main components, when overload are not damaged, in the rollers bearings front has safety device.
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