Labor violations at factory (about 700 employees) manufacturing hard disk drives: wage discrimination against agency workers; workers state that overtime is necessary to cover basic expenditures; on an incident 3 years ago management laid off all (1400 workers) union members; 12 hour daily shifts, 6-7 days/ week (72-84 hours/week); overtime is a requierement; at times no day off/month is provided; health and safety concerns; workers complain over very heavy lifting, heat rashes, sore and dry throats, skin burns.