GB/T 30165 - 2013 "Spinning & weaving machinery and accessories, corresponding dimensions of tongue needles for knitting machines, film thickness of needle rod and hook height", stipulates the corresponding size requirements of the film thickness and hook height of the tongue needle rod for knitting machines, and clarifies the size definition, tolerance range, etc., which provides a standard basis for the design, production and quality control of the tongue needles of knitting machines, helps to ensure the versatility and suitability of the tongue needles, and promotes the standardized production of the Spinning & weaving machinery industry.