1. 輪具內部夾層採螺旋式導流熱交換效果佳。
2. 管壁與螺旋葉片鍍鉻處理，具防銹及減緩水垢沈積阻塞之效果，延長輪具使用壽命。
1. Double shells design with a single or multiple spirals, provide good performance on heat distribution and exchange.
2. Chrome plated on inner and outer shell (including spiral structure), enabling anti-rust effect as well as reducing dirt accumulation to prolong roll serving life.
