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为了制造具有绉纹护套的纵向水密的纸绝缘电缆,F＆G公司发明了一种环形轧纹方法。利用其原理,可以制成设计简单而且用途广泛的轧纹机。
In order to make longitudinally watertight paper insulated cables with crepe jackets, F & G invented a ring-shaped embossing method. Using its principles, it is possible to make an easy-to-use and versatile corrugator.