... capability . This machine would be mostly used to automatically knit woolen sweater or costume accessory , fit to the material include ... Triangle board: (front-back)triangle board can fluctuate to knit faultlessly , system with high and low butt needles.(6) ... Automatism stop device: yarn-breaking,spin,needle-sever(crash),fabric-fall,yarn-floating,triangle board amplidyne,density amplidyne ,shuttle ...