... 75mm,100mm,120mm,150mm,200mmquality: highSliding door internal polyurethane foam overall.Application industry:Food, industrial, supermarket, warehousing, pharmaceutical, retail. ... -term working temperature is -55°C~+135°C.door board:Using polyurethane foam with panel overall, exterior ... box shell, the more enhance the overall effect.Door frame:Using aluminum alloy production, appearance is neat and ...