... at both heat and cold resistance 4.Top-rank rubber prpducts ,supply for galoble 500 enterpries. 1. Application ... reinforced fabric) as the skeleton coated with the rubber elastomer (NBR.NR.EPDM.FKM.Silicone and other ... 4. Formed in the shape of a truncated cone, or top hat, the diaphragm is turned in on ... eliminatinf sliding contact and breakaway friction. diaphragm & rubber fabric wave diaphragm