它们是由高抗拉强度的钢丝组成的。

They are made up of wire that's high tensile steel.

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增强层：二层高抗拉强度钢丝编织层。

Reinforcement: Two braids of high tensile steel wire.

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增强层：二层高抗拉强度钢丝编织层。

Reinforcement: Two braids of high tensile steel wire.

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