According to the German Electrical and Electronic Industry Association (ZVEI), compared with the data IN February, the PCB industry sales of German in March rose by nearly 7 percent, but significantly lower than last year's data .The orders received in March are slightly more than in February, but in terms of monthly or quarterly statistics,they are lower than the same period last year. As in previous years, many orders were canceled, customers tend to rearrange the order.In March 2012, book to bill ratio (book-to-billratio) is 0.9. The backlog of orders is still far higher than the long-term average .This year, the number of employees increased slightly, but still lower 3%  than the same period in 2011, the practice of short-term contracts and temporary staff are more common than previous years.