... Steel Bellows 3.Simple installation,inspection,maintenance,relocation Commercial Ceiling Sprinkler Connections for Firefighting1.Stainless steel bellows, welded, Braided2. ... Used for building Ceiling#we also have stainless sprinkler hose used for clean room.3.All stainless steel ... to sure in case the fire break out the sprinkler system works without blockage. We have passed ISO9001 and FM ...