... 3.dimension and thickness can be OEM Automatic power sliding door for cold roomPlace of Origin: Jiangsu China (Mainland) ... thickness: 50mm,75mm,100mm,120mm,150mm,200mm quality: highSliding door internal polyurethane foam overall.Application industry:Food, industrial, supermarket ... , when start the door,the wheel can separate door and doorframe.And when close the door , the wheel can press doorframe and ...