Sangha Metrology 30 Years in Europe. Sangha Metrology is the world's leading manufacturer of precision measuring equipments. Sangha Metrology,manufacturer and supplier of Precision Measuring Instruments and Material Testing System was formed in the late 1980's by Mohan Singh Sangha who recognised a market need for precision measuring instruments. Sangha Metrology has a well established product range, that has been supplied to many blue chip companies both in the UK and World-Wide.