1,Patent product 2,double blade floor saw 3,Poly V belt provides better transmission ... :+86-635-2921122Fax:+86-635-29988551,"Pro-Duo" is a double blade floor saw that can also be used as a ... conventional single blade floor saw.2, Suitable for blades from Ø350 mm up to Ø500 mm and able to ... equipment when on slope or not in use. High Performance Double Blades Concrete Floor Cutter