Avon Products Inc. may soon be sending its sales reps door-to-door in China, according to reports. Direct-selling would allow Avon to make further inroads into China, which is opening its giant markets after joining the World Trade Organization (WTO).An Avon representative said the company has gained approval to run a pilot program selling products directly to consumers in China. Avon already sells its products through retail outfits. China banned direct selling in 1998 under fears about fraud a...