Manual sliding door for cold room: 1.reasonable selection 2.beautiful appearance 3.durable,stainless steel Stainless manual sliding door for cold room Place of Origin: ... 50mm,75mm,100mm,120mm,150mm,200mm quality: highSliding door internal polyurethane foam overall.Application industry:Food, industrial ... is -55°C~+135°C.door board:Using polyurethane foam with panel overall, exterior level off, ...