Wertheim/Shanghai | China is always good for a surprise – Productronica Shanghai is an offshoot of the fair in Munich where, increasingly, EMS suppliers, PCB producers, automation and robotics well as the semi-conductors are represented. Once again, the Asian Productronica in the sprawling metropolis of Shanghai, which took place from 14 to 16 March, was marked by narrow aisles, jostling crowds and a babel of languages. System supplier Ersa has been taking part in the fair for three years now – this year, the Ersa stand was positively overrun.