Shenyang Huitong door industry is the only one in northeast China that can provide a full range of services for cold chain logistics, food production and processing industry. It is a high-tech enterprise integrating the r&d and production of ABS sterile free door, PVC cold storage free door (buffer door), fast shutter door, industrial lift door, safety escape door, door seal (sponge door seal, inflatable door seal) door cover (mechanical door seal). Our company introduces Swiss advanced equipment to develop intellectualized system engineering in the spirit of craftsman.