... thickness: 50mm,75mm,100mm,120mm,150mm,200mm quality: highSliding door internal polyurethane foam overall.Application industry:Food, industrial, supermarket ... box shell, the more enhance the overall effect.Door frame:Using aluminum alloy production, appearance is neat and easy, durable, and ... ’s material is Aluminum alloy, wheel is working on lining and inclined rail, when start the door,the wheel can ...