Conventional length of functional section is the distance from needlepoint to the upper point of taper. The length of functional section is decided by distance between barbs,the quantity of barbs,the depth of penetration and the requirements on performance of fabrics. The above-provided sizes are the standard sizes. For some particular purposes,non-standard sizes are also available.
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E-mail: violetma@foxmail.com
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Add: Fourseason Garden, Changshu city, Jiangsu Province, China
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