Plasticore with its steel core adds strength and the plasticsheath adds to the cable body and corrosion protection...
塑封软轴的钢芯可增强软轴的强度,而在软轴外加的塑封外层可加强抗腐蚀能力。
2
Introduced the principle of design and the main performance of railway links up grounding wire with alloy sheath and railway signal links up grounding wire with conductive plasticsheath.
介绍了合金护套铁路贯通地线与导电塑料护套铁路贯通地线的设计原理及主要性能。
3
Each is a transparent sheath of plastic 17-metres long, mostly underwater, held in place by a floating collar.