Unwinding roller is made of stainless composite piping material, which has the following advantages:( smooth on surface, non-pilling, non-knotting, non-slip-stick, unity in unwinding expansion, good core-spunned result), roller seat, driven chain, tractio 退绕罗拉:采用不锈钢复合管材料制作,该种材料具有以下几种优点(面光滑、挂丝、缠丝、打滑、绕张力均匀、芯效果好)罗拉托座、动链轮、伸变换齿轮、调试轴承导丝轮、动防护罩。