帆(fan)(fan)(fan)圈是帆(fan)(fan)(fan)布(bu)(bu)使(shi)用(yong)中的重(zhong)要配件(jian)，帆(fan)(fan)(fan)布(bu)(bu)通過(guo)帆(fan)(fan)(fan)布(bu)(bu)圈才(cai)能被繩(sheng)索(suo)捆(kun)扎固定，其質量好壞直(zhi)接影響帆(fan)(fan)(fan)布(bu)(bu)的使(shi)用(yong)情況。