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前言以108-S为代表的扩散喷嘴作为商品问世之后到现在已经近20年了。在此期间,作为最实用的高速切割喷嘴,即使在取得了确实可靠的成绩的今天,也没有出现过完全
Introduction Spread nozzle represented by 108-S has been nearly 20 years since its publication as a product. In the meantime, as the most practical high-speed cutting nozzle, even in the present reliable results have not appeared completely