An iPhone factory in China that's been the site of several worker deaths in recent months has been under-reporting the long hours employees endure, according to an investigator from a labor protection group.The Shanghai factory run by contract manufacturer Pegatron is one of Apple's suppliers for its iPhone handset. But to meet production quotas, workers at the facility generally work 72 hours per week, said Huang Bin, an investigator with New York-based China Labor Watch.The long hours counter Apple's claim that it's been trying to limit overtime at its suppliers to 60 hours per week. In June, during the one month Huang worked at the Pegatron factory, Apple said on average 99 percent of its suppliers complied with the 60-hour work week limit."There's no way they can achieve the working hour limit. The factory must reach a certain quota in the production," he
