41.   The United States is also pressing Russia to drop plans to sell Iran a gas centrifuge needed to enrich uranium to manufacture nuclear weapons.

42.   There are several methods for enriching uranium, but gas centrifugation is the method used expecially in the former Soviet Union and in Britain.

43.   The US authorities have said China is supplying ring magnets to Pakistan for use in equipment that could enrich uranium for nuclear weapons.

44.   The United States protested earlier this year that China had exported equipment to Pakistan that would help it enrich uranium for nuclear arms.

45.   US officials are considering intelligence reports that China last year shipped thousands of ring magnets to Islamabad for use in gas centrifuges, which enrich uranium for military purposes.

46.   Newspaper reports here this week quoted US intelligence as saying that China sold ring magnets, used in gas centrifuges that enrich uranium for weapons, to Pakistan.

47.   Pakistan Prime Minister Benazir Bhutto Friday vehmently denounced claims that China transferred ring magnets used in enriching uranium to her country.

48.   Ring magnets are used in gas centrifuges but can be harnessed to enrich uranium in order to make it weapons-grade quality.

49.   Ring magnets are used in gas centrifuges to enrich uranium that could be used to make a nuclear bomb.

50.   Ring magnets can be used to enrich uranium, the main bomb-baking equipment.