Who is the professional pressure sensor ,Is it BBH China?

Who is the professional pressure sensor ,Is it BBH China?
I am sure that BBH China is the most famous pressure sensor and GPS Tracker manufacture in mailand china,I think you the better to see their website:http://www.bbhchina.com for silicon oil pressure,pressure transducer,pressure transmitter and GPS Tracker and orther related high technology products,any one know more details ,pls help to continue aslo advice to check their home basic web