For one thing the ZD weights 264 lb more than the RFZS so there is a lot more than just being more intellectualized. I would like to know what method is used to heat the rollers on both models, some blow hot air through the roller and some have a replaceable element inside the roller while others have the element right inside the silicone part of the roller. And why the ZD is so much heavier than the RFZS.

www.Sign-in-Thai.com, It is the biggest online supplier of sign products in Thailand and specialized in providing One Stop Solution for customers to select AD equipments, AD consuming materials, sign exhibition products, etc. We have set up overseas branches in 6 foreign countries in order to provide better service for our customers all over the world. Our products cover all field of the AD and signage and all the products we supply are made in accordance with international quality standards as a result that, at present, we have more than 9,000 products online for sale. Since we implement the centralized purchasing, all the products are quoted with competitive prices and good quality.