过了环形岛，是一排高高的带菱形花格的粗钢丝网栅栏，顶上装有带刺的铁丝， 保护著庭院。
Past the circle, a high chain-link fence, topped with barbed wire, protects the premises.
德国HERKEL公司生产的高速拉丝模具在高速拉拔粗规格、高强度预应力钢丝中表现出较长的使用寿命。
The high speed drawing die are manufactured by HERKEL Company in Germany. It has longer service life drawing coarse round and high strength prestressed concrete steel wire at high speed.
介绍《粗直径钢丝绳》国家标准修订的意义和必要性，修订过程和主要的修订内容；
The significance, necessity, process, and main contents of revising National Standard of Steel Wire Rope with Large Diameter were introduced.
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