The author holds that the use of spiral mandreldie is a good method to eliminate the fusion jointing line to improve the product quality, and it should be adopted in the p…
作者认为螺旋芯棒机头是解决熔接线提高制品质量的较好办法,应推广到管材挤出生产中去。
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Spiral mandrel blown-film die is advanced and widely used in film blowing which is one of the most popular processing for plastics film.