IMC Welded Duct Connections Down below is usually a sample of the Bell type joint. The male facet with the joint belongs about the uphill facet of a sloping duct so the grease will drain again down. The ducts and fittings should be supported by hangers of non-combustible products made https://grease-tight-extract-duct68900.theisblog.com/37221765/the-ultimate-guide-to-grease-tight-extract-ductwork