Shanghai Block Automation Co.,Ltd. was established in 2003 and has become a renowned organization over the years. Shanghai Block Automation Co.,ltd. is a leading exporter, retailer in China offering high quality sensor,proximity switch. Also, our success can be evaluated by considering our annual revenue of US$2.5 Million - US$5 Million. Currently, we are serving importers and buyers from South America 8% Africa 12% Eastern Asia 11% Domestic Market 9% North America 11% Eastern Europe 10% Southern Europe 9% Mid East 11% Northern Europe 11% Oceania 8% and accepting payments via T/T, L/C, Western Union. With a workforce of 501 - 1000 People we are able to facilitate and respond to our clients within 48h-72h.