umatshini wokunitha we-crochet oomatshini bokuphotha ngesantya esiphezulu YTB inaliti yesantya esiphezulu I-YTB-C yekhompyutha ye-jacquard loom YTP swiss uhlobo inaliti ukuluka YTP-C yekhompyutha jacquard ukuluka Ikhathalogu yokulukwa kweYTS YTZ-F chain ukwenza umatshini