silk reeling machine part-Crochet Hook, thread free filament guide button-invention patent product for silk reeling machine Crochet Hook, thread free filament guide button not only can improve the production efficiency, but also release the labor intensity and reduce the cost. Hangzhou Tianfeng Textile Machinery Co., Ltd is a ISO9001:2008 Quality Certified and has been evaluated as 'Zhejiang Province High-Tech Enterprises' and 'Zhejiang Patent Model Enterprise'.China Invention Patent Application No. 200910301700.3 Main technic index: 1.thread free 2.suitable for all kinds of silk reeling machine 3.Size:20/22D-50/70D 4.cleanliness:above 98%, spotlessness: above 94% 5.production efficiency: improve 5% 6.silk failure: reduce 8%-10% Accessary: Screw, Screw cap, supporter.