COLOR1Frequency conversion heating rod (frequency upper limit 500W)变频加热棒（变频上限500W）
COLOR2heating rod (frequency upper limit 500W)变频加热棒+1KG七合一滤材
COLOR3Frequency conversion heating rod + filter cotton volume 12cm wide * 3m long * 2cm thick变频加热棒+过滤棉一卷12cm宽*3m长*2cm厚
COLOR4Frequency heating rod + 2KG seven-in-one filter变频加热棒+2KG七合一滤材