最常用的叉形针标准长度为63.5毫米(2.5英寸),在此基础上可据织物不同图纹效果按1.5毫米的长度递增或递减,此外, 亦可用标准长度26毫米(3英寸)针,工作段的长度由穿刺深度和对针的刚性要求来确定。
Standard length of the most commonly used furcated needle is 63.5 mm (2.5 inches). On that basis, the length can be increased or decreased by unit of 1.5 mm according to different requirements on the effect of stripes. Besides, you can also use the needles at standard length of 26 mm (3 inches), and the length of functional section is determined by the penetration depth and requirements on the rigidity of needle.