... 3/4" drum bungs,drum flanges, metal cap seals for steel drums with top technology of toolings of them ... 3/4" drum bungs,drum flanges,metal cap seals for steel drums With the top technology of toolings ... We warmly welcome any clients to our factory for further discussion and cooperation. We guarantee to provide ... need samples for testing. 2" and 3/4" drum bungs,drum flanges,metal cap seals for steel drums