Ningbo Sunwell Sealing Materials Co.,Ltd is one of the leading China flange insulation gasket kits manufacturers and suppliers ... of kits or buy the insulation gaskets, insulation sleeves, insulation washers separately.Type E Gasket, Type F Gaskets,Materials : Plain Phenolic, Neoprene, ... PTFE, G-7, G-10, G-11 etc.Range of insulation gaskets kit ...