放线盘 meaning in English

drawing drum

Core pay - off reel
中心放线盘
In order to avoid damage the surround of the prestressed steel by friction with the ground when steel piling up , the drawing drum shall be made for the steel use and it is required to most possibly avoiding its friction with ground
回答：为避免堆放时预应力筋与地面摩擦而损坏包裹层，应制作放线盘放料，沿下料方向应尽量减少与地面接触。