Our company provides the services to process sash by means of "NYEFORM Energy Technology". The processed sash can release energy permanently. The thermal effects between energy light and molecules inside body can produce thermal permanently. It breaks the limited condition of traditional self-heating sash which release heat by electric power. The processed sash is easy to use without any potential safety hazard. The energy light can not only efficiently improve blood circulation of waist and relieve waist muscular fatigue, but also activate cells and improve metabolism. It has its significant and long lasting functional effects of keeping warm, dredging the channel, antibacterial, expelling wind and dehumidifying, releasing pain and improving immunity. There is significant relieving and improving function for post partum protection, lumbar spondylosis, stomach cold, dysmenorrheal, alvine heaviness, physical chilly and so on.