纸护角是由沙管纸及牛卡板粘合而成，其用来作简单包装，起到保护纸箱及用打包带时不易损坏箱内货品，轻便，价格极低。
Paper Angle Protector
It is mainly used to protect products to prevent damages or to support the interior of carton to strengthen its carrying capacity.its size thickness and length can be custom made.