... non-metallic filler through lamination, spiral winding, and spot welding of the tops and ends. With good compression elasticity, it ... pressure, as the static sealing elements at the flange joints of pipelines, valves, pumps, heat exchangers, towers, manholes, handholes, ... in the heat exchanger with ribs. Material Selection:Materials of Steel Belt and Inner and Outer RingsFillersGeneral Thickness (mm ...